Books

Isaac, G. (1996) The Verb in the Book of Aneirin: Studies in Syntax, Morphology and Etymology. Buchreihe der Zeitschrift für celtische Philologie. : Max Niemeyer, Tübingen. [Details]

Isaac, G. (1998) The Syntax of the Sentence in Old Irish: Selected Studies from a Descriptive, Historical and Comparative Point of View. Pádraig Mac Coisdealbha. A new edition with additional notes and extended bibliography. Buchreihe der Zeitschrift für celtische Philologie. : Max Niemeyer, Tübingen. [Details]

Isaac, G. (2007) Linguistic Terminology in Welsh: A Historical Lexicon. Welsh - English - German, Hans Rössing, Münster. : Nodus Publications. [Details]

Isaac, G. (2007) Studies in Celtic Sound Changes and their Chronology (= Innsbrucker Beiträge zur Sprachwissenschaft 127). Innsbrucker Beiträge zur Sprachwissenschaft, Innsbruck. [Details]

Book Chapters

Isaac, G. (2007) 'Paths of the Celts, Paths of Celtic Studies: cultural reflections on the function of an ‘Arts subject’' In: Karl, Raimund; Stifter, David (eds). The Celtic World: Critical Concepts in Historical Studies. Four Volumes. London, Routledge. [Details]

Isaac, G. (2009) '‘Torann a dheireadh’ sa Bhreatain Bheag freisin! Eascaiteolaíocht as traidisiún na Breatnaise' In: Mac Craith, Mícheál; Ó Héalaí, Pádraig (eds). Diasa Díograise: Aistí i gCuimhne ar Mháirtín Ó Briain. Cló Iar-Chonnachta, Indreabhán. [Details]

Isaac, G. (2009) 'Wege der Kelten. Wege der Keltologie: Kulturwissenschaftliche Betrachtungen zur Funktion einer Geisteswissenschaft' In: Hemprich, Gisbert (eds). Festgabe für Hildegard L. C. Tristram überreicht von Studenten, Kollegen und Freunden des ehemaligen Faches Keltologie der Albert-Ludwigs-Universität, Freiburg. Curach Bhán Publications, Berlin. [Details]

 

Peer Reviewed Journals

ISAAC, GR (1993) 'NUMBERS IN EARLY WELSH POETRY'. Journal Of Indo-European Studies, 21 :359-365. [Details]

ISAAC, GR (1994) '2 WELSH ETYMOLOGIES - MIDDLE-WELSH REI AND THE -EI ENDING OF THE 3RD-PERSON SINGULAR OF THE IMPERFECT'. Zeitschrift Fur Celtische Philologie, 46 :200-220. [Details]

Isaac, G. (2000) 'Naw englyn y Juvencus llinell 6c'. Studia Celtica, 34 :272-273. [Details]

Isaac, G. (2000) 'Colli sillafau mewn Brythoneg'. Studia Celtica, 34 :105-118. [Details]

Isaac, G. (2000) 'Dau nodyn ar englynion Geraint fab Erbin yn Llyfr Du Caerfyrddin'. Studia Celtica, 34 :273-274. [Details]

Isaac, G. (2000) 'The most recent model of the development of absolute and conjunct flexion (= Varia I)'. Ériu, 51 :63-68. [Details]

Isaac, G. (2000) 'leubrit, loubrit'. Studia Celtica, 34 :271-272. [Details]

Isaac, G. (2001) 'The Gaulish inscription of Séraucourt à Bourges'. Studia Celtica, 35 :351-354. [Details]

Isaac, G. (2001) 'An Indo-European athematic imperfect in Welsh? Middle Welsh gwant'. Studia Celtica, 35 :355-360. [Details]

Isaac, G. (2001) 'The function and typology of absolute and conjunct flexion in early Celtic: some hints from Ancient Egyptian'. Transactions of the Philological Society, :147-170. [Details]

Isaac, G. (2001) 'Nodiadau ar linellau ac awdlau or Gododdin'. Studia Celtica, 35 :271-283. [Details]

Isaac, G. (2001) 'Myrddin, proffwyd diwedd y byd: ystyriaethau newydd ar ddatblygiad ei chwedl'. Llên Cymru, 24 :13-23. [Details]

Isaac, G. (2001) 'Mydr a pherfformiad yr Hengerdd'. Dwned, 7 :9-26. [Details]

Isaac, G. (2002) 'Dewiniaeth yn Manawydan fab Llyr'. Dwned, 8 :79-86. [Details]

Isaac, G. (2002) 'Ymddiddan Taliesin ac Ugnach: propaganda Cymreig yn oes y Croesgadau? (See the correction in ‘Nodyn golygyddol’, Llên Cymru 26 (2003), 17.)'. Llên Cymru, 25 :12-20. [Details]

Isaac, G. (2002) 'Scholarship and patriotism: the case of the oldest Welsh poetry'. Studi Celtici, 1 :67-81. [Details]

Isaac, G. (2002) 'Gwarchan Maeldderw: a ‘lost’ medieval Welsh classic?'. Cambrian Medieval Celtic Studies, 44 :73-96. [Details]

Isaac, G. (2003) 'Cymraeg rhyngu, rhanc, Hen Wyddeleg ro-icc; Dadl y Corff ar Enaid ll. 128 dinag'. Studia Celtica, 36 :141-145. [Details]

Isaac, G. (2003) 'Prospects in Old Irish syntax'. Zeitschrift für celtische Philologie, 53 :181-197. [Details]

Falileyev, A. (2003) 'Leeks and garlic: the Germanic ethnonym Cannenefates, Celtic kasn- and Slavic kesn-'. North Western European Language Evolution, 42 :3-12. [Details]

Isaac, G. (2003) 'Welsh byw, byd, hyd'. Studia Celtica, 36 :145-147. [Details]

Isaac, G. (2003) 'The Celtiberian alphabetic signs san and sigma, and the ablative singular'. Studia Celtica, 36 :1-20. [Details]

Isaac, G. (2003) 'Some Old Irish etymologies, and some conclusions drawn from them (= Varia I)'. Ériu, 52 :151-155. [Details]

Isaac, G. (2003) 'Meaning and structure, composition and representation: readings from a Welsh construction'. Studi Celtici, 2 :265-275. [Details]

Isaac, G. (2004) 'The chronology of the development of Brittonic stops and the spirant mutation'. Journal of Celtic Linguistics, 8 :49-85. [Details]

Isaac, G. (2004) 'Canu Aneirin awdl LI revisted: Gildas and the Gododdin'. Zeitschrift für celtische Philologie, 54 :144-153. [Details]

Isaac, G. (2004) 'The Old- and early-Middle-Welsh ‘future’ tense: form and function of a moribund category'. Journal of Celtic Studies, 4 :153-170. [Details]

Isaac, G. (2005) 'The nature and origins of the Celtic languages: Atlantic seaways, Italo-Celtic and other paralinguistic misapprehensions'. Studia Celtica, 38 :49-58. [Details]

Isaac, G. (2005) 'Welsh sudd ‘juice’, hufen ‘cream’'. Studia Celtica, 38 :179-180. [Details]

Isaac, G. (2005) 'A note on Cormac’s Pictish brooch'. Journal of Celtic Linguistics, 9 :73-82. [Details]

Falileyev, A. (2006) 'Remetodia'. Acta Onomastica, 47 :173-176. [Details]

Isaac, G. (2007) 'The reflexes of the British diphthong *au'. Journal of Celtic Linguistics, 11 :23-47. [Details]

Isaac, G. (2007) 'A new conjecture on the origins of absolute and conjunct flexion'. Ériu, 57 :49-60. [Details]

Isaac, G. (2007) 'Review article on Kim McCone, The Origins and Development of the Insular Celtic Verbal Complex (= Maynooth Studies in Celtic Linguistics VI). Maynooth, The Department of Old Irish, National University of Ireland, Maynooth'. Journal of Celtic Linguistics, 11 :131-159. [Details]

Isaac, G. (2008) 'Reviews: article on McCone, Kim, A First Old Irish Grammar and Reader including an Introduction to Middle Irish, Maynooth, 2005; Stifter, David, Sengoídelc: Old Irish for Beginners, Syracuse, NY, Syracuse University Press, 2006; Tigges, Wim, in collaboration with Feargal Ó Béarra, An Old Irish Primer, Nijmegen, Stichting Uitgeverij de Keltische Draak; Münster, Nodus Publikationen, 2006'. Journal of Celtic Linguistics, 12 (1):139-160. [Details]

Isaac, G. (2008) 'The Verb in the Book of Aneirin: addenda and corrigenda'. Zeitschrift für celtische Philologie, 56 :119-128. [Details]

Isaac, G. (2008) 'Two notes on the ‘great’ Celtiberian inscription of Peñalba de Villastar'. Studia Celtica, 42 :160-166. [Details]

Isaac, G. (2008) 'Brittonic voiceless spirants again'. Journal of Celtic Linguistics, 12 :17-37. [Details]

Isaac, G. (2009) 'A note on the name of Ireland in Irish and Welsh'. Ériu, 59 :49-55. [Details]

Isaac, G. (2009) 'Medieval Welsh Englynion Duad and Proto-Indo-European die´us ph2te´r'. Journal of Celtic Studies, 5 :97-106. [Details]

       

Book Review

Isaac, GR (2008) The Poets of the Nobility Series. Book Review [Details]

 

Conference Paper

Isaac, G. (1994) Wortstellung im Urinselkeltischen: Rekonstruktion und Typologie. Was determiniert Wortstellungsvariation? Studien zu einem Interaktionsfeld von Grammatik, Pragmatik und Sprachtypologie. Conference Paper [Details]

Isaac, G. (1999) Zur frühen keltischen Metrik. Akten des zweiten deutschen Keltologen-Symposiums. Conference Paper [Details]

Isaac, G. (2002) Meter and performance in early Welsh poetry. Meter, Rhythm and Performance - Metrum, Rhythmus und Performanz. Europäischer Verlag der Wissenschaften, Frankfurt: Conference Paper [Details]

Isaac, G. (2003) Diagnosing the symptoms of contact: some Celtic - English case-histories. Celtic Englishes. Universitätsverlag Winter, Heidelberg: Conference Paper [Details]

Isaac, G. (2003) The structure and typology of prepositional relative clauses in early Welsh. Yr Hen Iaith: Studies in Early Welsh, Celtic Studies Publications. Aberystwyth: Conference Paper [Details]

Isaac, G. (2004) Keltiberisches und inselkeltisches Imperfekt. Keltologie Heute - Themen und Fragestellungen. Conference Paper [Details]

Isaac, G. (2005) Scotland. New Approaches to Celtic Place-Names. Ptolemy’s Geography. Madrid: Conference Paper [Details]

Isaac, G. (2005) Insular Celtic vs. Gallo-Brittonic: an empirical or a methodological question? . Celtic Connections: Papers from the Tenth International Congress of Celtic Studies. Archaeology Monograph. University of Edinburgh: Conference Paper [Details]

Isaac, G. (2007) Celtic and Afro-Asiatic. The Celtic Languages in Contact: Papers from the Workshop within the Framework of the XIII International Celtic Congress, Bonn. Bonn: Conference Paper [Details]

Isaac, G. (2007) Armes Prydain Fawr and St. David. St David of Wales: Cult, Church and Nation. Conference Paper [Details]

Isaac, G. (2009) Die Urgeschichte der verbalen Morphosyntax im Keltischen: Eine Schnittstelle zwischen Grammatik, Semantik und Pragmatik. Pragmatische Kategorien: Form, Funktion und Diachronie. Akten der Arbeitstagung der Indogerman-ischen Gesellschaft. Marburg: Conference Paper [Details]

Isaac, G. (2010) The origins of the Celtic languages: language spread from East to West. Celtic from the West: Alternative Perspectives from Archaeology, Genetics, Language and Literature. Conference Paper [Details]

Isaac, G. (2010) Celtic and Afro-Asiatic: a further note on the theory of prehistoric contact between them. Kelten am Rhein: Akten des dreizehnten Internationalen Keltologiekongresses, Zweiter Teil. Philologie, Verlag Philipp von Zabern, Mainz am Rhein. Bonn: Conference Paper [Details]

Isaac, G. (2011) Hanes rhaid a rheswm. colloquium in context of the British Academy funded project ‘Datblygiad yr Iaith Cymraeg’. University of Bangor: Conference Paper [Details]

         

Media

Isaac, G. (2001) Yr Hengerdd: Mynegeiriau Cyflawn, CD-ROM . Media [Details]

Isaac, G., Rodway, S. (2002) Rhyddiaith Gymraeg o Lawysgrifau’r 13eg Ganrif: Testun Cyflawn, CD-ROM . Media [Details]

Isaac, G. (2002) The Antonine Itinerary, Land Routes. An electronic data base with etymological analysis of the Celtic name-elements. CD-ROM. Media [Details]

Isaac, G. (2004) Place-Names in Ptolemy’s Geography. An electronic data base with etymological analysis of the Celtic name-elements, CD-ROM. Media [Details]

 

Other Item

Isaac, G. (2002) Studia Celtica. Other Item [Details]

Isaac, G. (2003) Studia Celtica. Other Item [Details]

Isaac, G. (2004) Journal of Celtic Linguistics. Other Item [Details]

Isaac, G. (2005) Studia Celtica. Other Item [Details]

Isaac, G. (2005) Journal of Celtic Linguistics. Other Item [Details]

Isaac, G. (2006) Studia Celtica. Other Item [Details]

Isaac, G. (2006) Journal of Celtic Linguistics. Other Item [Details]

Isaac, G. (2007) Studia Celtica. Other Item [Details]

Isaac, G. (2007) Journal of Celtic Linguistics. Other Item [Details]

Isaac, G. (2008) Pictish. Encyclopedia entry. Wieser Sprachenenzyklopädie Westeuropa. Other Item [Details]

Isaac, G. (2008) Studia Celtica. Other Item [Details]

Isaac, G. (2008) Journal of Celtic Linguistics. Other Item [Details]

Isaac, G. (2009) Studia Celtica. Other Item [Details]

Isaac, G. (2009) Journal of Celtic Linguistics. Other Item [Details]

Isaac, G. (2010) Studia Celtica. Other Item [Details]

 

Reviews

Isaac, G. (2000) Review of R. Iestyn Daniel (1999), Gwaith Casnodyn. Aberystwyth: Centre of Advanced Welsh and Celtic Studies. 34, 286. Studia Celtica. Reviews [Details]

Isaac, G. (2001) Review of Stefan Zimmer (2000), Studies in Welsh Word-Formation. Dublin: Dublin Insitute of Advanced Studies. Cambrian Medieval Celtic Studies. Reviews [Details]

Isaac, G. (2001) Review of National Library of Wales Journal 30.1-2. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2001) Review of National Library of Wales Journal 30.3-4. Zeitschrift für celtische Philologie. Reviews [Details]

Falileyev, A. (2001) Review of A. O. H. Jarman / Gwilym Rees Hughes, A Guide to Welsh Literature, Volume 2. Revised edition by Dafydd Johnston. Cardiff (1997). Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2002) Review of David Willis (1998), Syntactic Change in Welsh: a Study of the Loss of Verb-Second. Oxford: Oxford University Press . Kratylos. Reviews [Details]

Isaac, G. (2002) Review of Ian Hughes (2000), Math Uab Mathonwy, Aberystwyth, Prifysgol Cymru Aberystwyth. Studi Celtici. Reviews [Details]

Isaac, G. (2003) Review of Peter Busse, Cynddelw Brydydd Mawr - Archaismus und Innovation, Münster, Nodus Publications, 2002. Studi Celtici. Reviews [Details]

Isaac, G. (2003) Review of National Library of Wales Journal 31.1-2. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2004) Review of Rhiannon Ifans (2000), Gwaith Gruffudd Llwyd a’r Llygliwiaid Eraill, Aberystwyth, Canolfan Uwchefrydiau Cymreig a Cheltaidd. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2004) Review of R. Geraint Gruffydd, ‘Edmyg Dinbych’. Cerdd Lys Gynnar o Ddyfed (Darlith Goffa J. E. Caerwyn Williams a Gwen Williams 2001) (Aberystwyth: Canolfan Uwchefrydiau Cymreig a Cheltaidd Prifysgol Cymru, 2002) . Studia Celtica. Reviews [Details]

Isaac, G. (2004) Review of National Library of Wales Journal 32.1. 54, 330-2. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2004) Review of R. Iestyn Daniel (ed.), Gwaith Dafydd y Coed a Beirdd Eraill o Lyfr Coch Hergest (Aberystwyth: Canolfan Uwchefrydiau Cymreig a Cheltaidd Prifysgol Cymru, 2002). Studia Celtica. Reviews [Details]

Isaac, G. (2004) Review of Bernhard Maier, Stefan Zimmer (eds) (2001), 150 Jahre “Mabinogion” - deutsch-walisische Kulturbeziehungen, Tübingen, Max Niemeyer Verlag. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2004) Review of Iwan Wmffre, Language and Place-Names in Wales. The Evidence of Toponymy in Cardiganshire, Cardiff, University of Wales Press, 2003. . Journal of Celtic Linguistics. Reviews [Details]

Isaac, G. (2004) Review of National Library of Wales Journal 31.3-4. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2004) Review of Pierre-Yves Lambert, Recueil des Inscriptions Gauloises (R.I.G.) Volume II, Fascicule 2. Textes Gallo-Latins sur instrumentum. XLVe Supplément à Gallia (Paris: CNRS Éditions, 2002). Studia Celtica. Reviews [Details]

Isaac, G. (2005) Review of Stéphane Gendron, Les Noms des Lieux en France. Essai de toponymie, Paris, Éditions Errance, 2003. Journal of Celtic Linguistics. Reviews [Details]

Isaac, G. (2005) Review of Britta Schulze-Thulin, Studien zu den urindogermanischen o-stufigen Kausativa-Iterativa und Nasalpräsentien im Kymrischen (Innsbruck: Innsbrucker Beiträge zur Sprachwissenschaft, 2001) . Studia Celtica. Reviews [Details]

Isaac, G. (2006) Review of Stefan Zimmer (ed.), Die Kelten: Mythos und Wirklichkeit, Stuttgart, Konrad Theiss Verlag, 2004. Cambrian Medieval Celtic Studies. Reviews [Details]

Isaac, G. (2006) Review of Ceri Davies (ed.), Dr John Davies of Mallwyd: Welsh Renaissance Scholar, Cardiff, University of Wales Press, 2004. Journal of Celtic Linguistics. Reviews [Details]

Isaac, G. (2006) Review of Jürg Rainer Schwyter, Erich Poppe, Sandrine Onillon (eds), Le slipping dans les languages médiévales, Lausanne, Université de Lausanne, 2005. Journal of Celtic Linguistics. Reviews [Details]

Isaac, G. (2006) Review of Paul Widmer, Das Korn des weiten Feldes: interne Derivation, Derivationskette und Flexionsklassenhierarchie: Aspekte der nominalen Wortbildung im Urindogermanischen, Innsbruck, Innsbrucker Beiträge zur Sprachwissenschaft, 2004 . Journal of Celtic Linguistics. Reviews [Details]

Isaac, G. (2006) Review of Stefan Schumacher, Die keltischen Primärverben: Ein vergleichendes, etymologisches und morphologisches Lexikon, Innsbruck, Innsbrucker Beiträge zur Sprachwissenschaft, 2004 . Studia Celtica. Reviews [Details]

Isaac, G. (2006) Review of Dónall Ó Riagáin, Thomas Stolz (eds), Purism: Second Helping: Papers from the Conference of ‘Purism in the Age of Globalisation’, Bremen, September 2001, Bochum, Brockmeyer, 2004. Journal of Celtic Linguistics. Reviews [Details]

Isaac, G. (2007) Review of National Library of Wales Journal 32.2 . Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2008) Review of National Library of Wales Journal 32.3-4, 33.1. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2008) Cyfres Beirdd yr Uchelwyr, series ed., Aberystwyth, University of Wales Centre for Advanced Welsh and Celtic Studies, 2002, 2003, 2003, 2004, 2006. . Cambrian Medieval Celtic Studies. Reviews [Details]

Isaac, G. (2008) Review of Raimund Karl, Altkeltische Sozialstrukturen. Budapest, Archaeolingua, 2006. . Kratylos. Reviews [Details]

Isaac, G. (2008) Review of Francisco Villar, Blanca M. Prósper, Vascos, Celtas e Indoeuropeos: genes y Lenguas, Salamanca, Ediciones Universidad Salamanca, 2005. Zeitschrift für celtische Philologie. Reviews [Details]

Isaac, G. (2009) John T. Koch (ed.), Celtic Culture, A Historical Encyclopedia. Santa Barbara, Denver, Oxford, ABC-CLIO, 2006. . Studia Celtica. Reviews [Details]

Isaac, G. (2010) The Celtic Question: Modern Constructs and Ancient Realities, Kim McCone. Dublin, School of Celtic Studies, Dublin Institute for Advanced Studies. Journal of the Galway Archaeological and Historical Society. Reviews [Details]

Isaac, G. (2010) Early Irish Satire, Roisin McLaughlin. Dublin, School of Celtic Studies, Dublin Institute for Advanced Studies. Journal of the Galway Archaeological and Historical Society. Reviews [Details]

     

Workshops

Isaac, G. (1991) An early Welsh metrical feature. Neuvième Congrès International d'Études Celtiques. Sorbonne, Paris: Workshops [Details]

Isaac, G. (1992) Linguistic difficulties in the development of Insular Celtic syntax. 25th Annual Meeting of Societas Linguistica Europaea. University College, Galway: Workshops [Details]

Isaac, G. (1994) Nochmals zur mittelkymrischen Worstellung. Sprachwissenschaftliches Colloquium. Sprachwissenschaftliches Institut, Bonn: Workshops [Details]

Isaac, G. (1994) Ist das Unnormale normal? Zur Informationsstruktur in der mittelkymrischen Prosa . Sprachwissenschaft-liches Colloquium. Sprachwissenschaftliches Institut der Universität Bonn: Workshops [Details]

Isaac, G. (1994) Canu Aneirin Z. 872: rac cant ef gwant gesseuin: eine Analyse. Sprachwissenschaftliches Colloquium. Sprachwissenschaftliches Institut der Universität Bonn: Workshops [Details]

Isaac, G. (1994) Fokus und Topikalisierung: eine kurze Geschichte der kymrischen Wortstellungsprag-matik. Forschungsschwerpunkt Allgemeine Sprachwissenschaft, Typologie und Universalienforschung. Berlin: Workshops [Details]

Isaac, G. (1995) Insular Celtic vs. Gallo-Brittonic: an empirical or a methodological question? . 10th International Congress of Celtic Studies. University of Edinburgh: Workshops [Details]

Isaac, G. (1995) Perfektivität, Transitivität, Ergativität: Zur Typologie des Kasus im kymrischen nichtfiniten Satz. Bonn, Freitagskreis, Sprachwissenschaftliches Institut. Workshops [Details]

Isaac, G. (1995) Syntaxrekonstruktion: was ist das? Methodologische Überlegungen am Beispiel des Keltischen. Sprachwissenschaftliches Colloquium. Sprachwissenschaftliches Institut, Bonn: Workshops [Details]

Isaac, G. (1996) Der Vers Libre im Kymrischen. Englisches Seminar. Albert-Ludwigs-Universität Freiburg: Workshops [Details]

Isaac, G. (1996) New readings in the Gododdin. Jesus College. Oxford: Workshops [Details]

Isaac, G. (1997) Einführung in die Keltologie für Indogermanisten. Blockseminar, Institut für Vergleichende und Indogermanische Sprachwissenschaft. Freie Universität Berlin: Workshops [Details]

Isaac, G. (1997) The function and typology of absolute and conjunct flexion in early Celtic: some hints from Ancient Egyptian. 11th Irish Conference of Medievalists. National University of Ireland, Maynooth: Workshops [Details]

Isaac, G. (1997) Zur Typologie der keltischen Sprachen. Seminar für Englische Philologie. Freie Universität Berlin: Workshops [Details]

Isaac, G. (1998) Mesur oed ac amser iaith. University of Wales, Aberystwyth: Workshops [Details]

Isaac, G. (1998) Prospects in Old Irish syntax. 12th Irish Conference of Medievalists. National University of Ireland, Maynooth: Workshops [Details]

Isaac, G. (1998) What is syntax? . Gastvortrag im Rahmen des Kurses 'Einführung in die Sprachwissenschaft', Englisches Seminar. Bonn: Workshops [Details]

Isaac, G. (1998) Wege der Kelten - Wege der Keltologie. Kulturwissenschaftliche Betrachtungen zur Funktion einer Geisteswissenschaft. Humboldt-Universität zu Berlin: Workshops [Details]

Isaac, G. (1999) Zum keltischen und indogermanischen Imperfekt. Institut für Vergleichende und Indogermanische Sprachwissenschaft. Universität Berlin: Workshops [Details]

Isaac, G. (1999) Neues zur keltiberischen Grammatik. Institut für Vergleichende und Indogermanische Sprachwissenschaft. Universität Berlin: Workshops [Details]

Isaac, G. (1999) Grammaticalisation of aspect in Welsh: the case of non-finite clauses. International Symposium on Grammaticalisation. Universität Potsdam: Workshops [Details]

Isaac, G. (1999) Myrddin, prophet of Doomsday: the early stages of the Merlin legend revisited. 11th International Congress of Celtic Studies. University College, Cork: Workshops [Details]

Isaac, G. (2000) Particles and infixes: further to absolute and conjunct once again. 14th Irish Conference of Medievalists. National University of Ireland, Maynooth: Workshops [Details]

Isaac, G. (2000) Beth yw'r Gwarchanau? . University of Wales Aberystwyth: Workshops [Details]

Isaac, G. (2000) Gwladgarwyr ac ysgolheigion: safle'r Hengerdd. Conference on Wales and the Welsh 2000. University of Wales Aberystwyth: Workshops [Details]

Isaac, G. (2000) Gwarchan Maeldderw: clasur 'coll' yr oesoedd canol? . Post-Graduate Seminar. University of Wales Aberystwyth, Department of Welsh: Workshops [Details]

Isaac, G. (2000) Y Gymraeg fel Iaith ddynol. Research Seminar. University of Wales Aberystwyth, Department of Welsh: Workshops [Details]

Isaac, G. (2001) Gwarchan Maeldderw: a 'lost' medieval Welsh classic?. Departmental Lecture Series (held at St. John's College), Department of Anglo-Saxon, Norse and Celtic, University of Cambridge. Workshops [Details]

Isaac, G. (2001) Armes Prydein and ethnic perceptions in tenth-century Wales. 15th Irish Conference of Medievalists. National University of Ireland, Maynooth: Workshops [Details]

Isaac, G. (2002) Meaning and structure, composition and representation: readings from a Welsh construction. Rethinking Language and Mind, 35th Meeting of the Societas Linguistica Europaea. Universität Potsdam: Workshops [Details]

Isaac, G. (2002) Darllen Celtibereg: ystyriaethau newydd ar ramadeg hen iaith Geltaidd Sbaen. Centre for Advanced Welsh and Celtic Studies. Aberystwyth: Workshops [Details]

Isaac, G. (2002) The ancient local names of Scotland. Tercer Coloquio Internacional de Tolomeo: hacia un atlas lingüístico de los topónimos celtas antiguos de Europa. Universidad Complutense de Madrid: Workshops [Details]

Isaac, G. (2002) Die keltiberischen alphabetischen Zeichen Sigma und San und der Ablativ Singular. Fachgebiet Vergleichende Sprachwissenschaft. Philipps-Universität Marburg: Workshops [Details]

Isaac, G. (2002) The early Welsh future tense: form and function of a moribund morphological category. 16th Irish Conference of Medievalists. National University of Ireland, Maynooth: Workshops [Details]

Isaac, G. (2003) The nature and origins of the Celtic languages: Atlantic seaways, Italo-Celtic and other paralinguistic misapprehensions. 12th International Congress of Celtic Studies. University of Wales, Aberystwyth: Workshops [Details]

Isaac, G. (2003) Some observations on the linguistic geography of ancient and medieval Scotland. Conference of the Early Medieval Europe Research Group (EMERGE). University of St. Andrews: Workshops [Details]

Isaac, G. (2003) The river-names of Britain recorded by Ptolemy. Conference of the Society for Name Studies in Britain and Ireland. University of Nottingham: Workshops [Details]

Isaac, G. (2004) The nature and origins of the Celtic languages: Atlantic seaways, Italo-Celtic and other paralinguistic misapprehensions. Departmental Lecture Series (held at St. John's College), Department of Anglo-Saxon, Norse and Celtic, University of Cambridge. Workshops [Details]

Isaac, G. (2004) Cormac's Pictish brooch: a linguistic commentary. 18th Irish Conference of Medievalists. St. Kieran's College, Kilkenny: Workshops [Details]

Isaac, G. (2004) Text and pretext: thoughts on editing the Gododdin. Keynote Lecture, Celtic Studies Association of North America Annual Meeting. University of Toronto: Workshops [Details]

Isaac, G. (2005) Torann a dheireadh' sa Bhreatain Bheag freisin! Eascaiteolaíocht as traidisiún na Breatnaise. Comhdháil Litríocht agus Cultúr na Gaeilge. National University of Ireland, Galway: Workshops [Details]

Isaac, G. (2005) One step forward and two steps back: the interpretation of the 'Pictish' inscriptions. 19th Irish Conference of Medievalists. St. Kieran's College, Kilkenny: Workshops [Details]

Isaac, G. (2005) Strachan's work on medieval Welsh. Colloquium on the Life and Work of John Strachan. University of Aberdeen: Workshops [Details]

Isaac, G. (2006) The name of Ireland in Welsh and Irish. Tionól. School of Celtic Studies, Dublin Institute for Advanced Studies: Workshops [Details]

Isaac, G. (2007) The rule of palatalisation in Proto-Irish. 21st Irish Conference of Medievalists. Mary Immaculate College, Limerick: Workshops [Details]

Isaac, G. (2007) The relative chronology of sound changes from Proto-Indo-European to Common Celtic. Tionól. School of Celtic Studies, Dublin Institute for Advanced Studies: Workshops [Details]

Isaac, G. (2008) The wave mechanics of early Welsh verse . Tionól. School of Celtic Studies, Dublin Institute for Advanced Studies: Workshops [Details]

Isaac, G. (2008) The origins of the Celtic languages: language spread from East to West. Celticization from the West. Centre for Advanced Welsh and Celtic Studies, Aberystwyth: Workshops [Details]

Isaac, G. (2008) Bemerkungen zur Sprache der altwalisischen Hengerdd-Dichtung. Institut für Anglistik, Amerikanistik und Keltologie, Abteilung Vergleichende Indogermanische Sprachwissenschaft, Bonn. Workshops [Details]

Isaac, G. (2008) Funktion und Urgeschichte der Verbalflexion im Keltischen: Eine Schnittstelle zwischen Grammatik, Semantik und Pragmatik. Institut für Anglistik, Amerikanistik und Keltologie, Abteilung Vergleichende Indogermanische Sprachwissenschaft, Bonn, Sprachwissenschaftliches Colloquium. (Extended version of 2007, 'Die Urgeschichte ...', Marburg.). Workshops [Details]

Isaac, G. (2008) Die mittelalterliche walisische Metrik. Institut für Anglistik, Amerikanistik und Keltologie, Abteilung Vergleichende Indogermanische Sprachwissenschaft, Bonn. Workshops [Details]

Isaac, G. (2008) The oldest recorded names in Ireland: Ptolemy's Iouernia : Early Places and Peoples: Place-Names in Texts and Contexts . The First International Conference on the Early Medieval Toponymy of Ireland and Scotland, School of Languages, Literatures and Performing Arts. Queen's University, Belfast: Workshops [Details]

Isaac, G. (2008) Problems understanding Middle Welsh texts. Colloquium in context of the British Academy funded project 'Datblygiad yr Iaith Cymraeg'. British Academy, London: Workshops [Details]