Books • 1991:
The Reflexes of the Proto-Indo-European Laryngeals in Latin. Doctoral dissertation. Leiden Studies in Indo-European 2. Amsterdam/Atlanta: Rodopi. • 1995:
Studies in British Celtic Historical Phonology. Amsterdam: Rodopi. . • 1997:
Studies in the History of Celtic Pronouns and Particles. Maynooth: Department of Old Irish, National University of Ireland. . • 2014:
Language Contact and the Origins of the Germanic Languages. New York & Abingdon: Routledge. . ;Edited volume • 2004: with Peter-Arnold Mumm (eds.),
Sprachtod und Sprachgeburt. Bremen: Dr. Ute Hempen.
Articles and book chapters • 1990: “Latin
festīnāre, Welsh
brys”,
Münchener Studien zur Sprachwissenschaft 51: 243–247. • 1991: “The development of primitive Irish *
aN before voiced stop”,
Ériu 42: 13–25. • 1992: “The development of PIE *
sk- in British”,
Bulletin of the Board of Celtic Studies 39: 1–15. • 1993: • “On the development of vowels before tautosyllabic nasals in Primitive Irish”,
Ériu 44: 33–52. • “Varia IV. OIr.
dëec,
dëac”,
Ériu 44: 181–184. • 1994: “The Celtic adverbs for ‘against’ and ‘with’ and the early apocope of *-i”,
Ériu 45: 151–189. • 1996: “OIr.
gor ‘pious, dutiful’: meaning and etymology”,
Ériu 47: 193–204. • 1997: “Animal, vegetable and mineral: Some western European substratum words”, in
Sound Law and Analogy: Papers in Honor of Robert S.P. Beekes on the Occasion of His 60th Birthday, ed. Alexander Lubotsky. Amsterdam–Atlanta: Rodopi, pp. 293–316. • 1998: “The British word for ‘fox’ and its Indo-European origins”,
JIES 26: 421–434. • 1999: • “Vedic
gr̥bhṇā́ti,
gr̥bhāyáti and the semantics of *
ye- derivatives of nasal presents”,
Münchener Studien zur Sprachwissenschaft 59: 115–162. • “Vowel rounding by Primitive Irish labiovelars”,
Ériu 50: 133–137. • “On henbane and early European narcotics”,
Zeitschrift für celtische Philologie 51: 17–45. • “The Celtic contribution to the development of the North Sea Germanic vowel system, with special reference to Coastal Dutch”,
NOWELE 35: 3–47. • 2001: “Lost languages in Northern Europe”, in
Early Contacts Between Uralic and Indo-European: Linguistic and Archaeological Considerations, eds. C. Carpelan, A. Parpola & P. Koskikallio. Helsinki: Mémoires de la Société Finno-Ougrienne: 417–425. • 2002: “The Rise and Fall of British Latin: Evidence from English and Brittonic”, in
The Celtic Roots of English, eds. Markkuu Filppula, Juhani Klemola, & Heli Pitkänen. Joensuu: University of Joensuu, Faculty of Humanities, pp. 87–110. • 2003: • “Athematic
i-presents: the Italic and Celtic evidence”,
Incontri Linguistici 26: 59–86. • “The etymology of Welsh
chwith and the semantics and etymology of PIE *k(ʷ)sweibʰ-”,
Yr Hen Iaith: Studies in Early Welsh, ed. P. Russell. Aberystwyth: 1–23. • 2004: • “Indo-European *smer- in Greek and Celtic”, in
Indo-European perspectives: Studies in honour of Anna Morpurgo Davies, ed. J. Penney. Oxford: Oxford University Press, 292–299. • “Apes, dwarfs, rivers and Indo-European Internal Derivation”, in
Per aspera ad asteriscos: Studia Indogermanica in honorem Jens Elmegård Rasmussen sexagenarii Idibus Martiis anno MMIV, eds. Adam Hyllested, Anders Richardt Jørgensen, Jenny Helena Larsson, & Thomas Olander. Innsbruck: Institut für Sprachwissenschaft der Universität Innsbruck, pp. 507–511. • “Der Tod des Festlandkeltischen und die Geburt des Französischen, Niederländischen und Hochdeutschen”, in
Sprachtod und Sprachgeburt, eds. Peter Schrijver & Peter-Arnold Mumm. Bremen: Dr. Ute Hempen, pp. 1–20. • 2005: “Early Celtic diphthongization and the Celtic-Latin interface”, in
New Approaches to Celtic Placenames in Ptolemy’s Geography, eds. J. de Hoz, R.L. Luján & Patrick Sims-Williams. Madrid: Ediciones Clásicas, 55–67. • 2007: • “Some common developments of Continental and Insular Celtic”, in
Gaulois et celtique continental, eds. Pierre-Yves Lambert & Georges-Jean Pinault. Geneva: Droz, 357–371. • “What Britons spoke around 400 AD”, in
Britons in Anglo-Saxon England, ed. N. J. Higham. Woodbridge: Boydell, 2007, pp. 165–71. • 2009: “Celtic influence on Old English: Phonological and phonetic evidence”,
English Language and Linguistics 13, no. 2 (2009): 193–211. • 2011:
Brythonic Celtic—Britannisches Keltisch: From Medieval British to Modern Breton, ed. Elmar Ternes. Bremen: Hempen Verlag. • “Old British”, 1–85. • “Middle Breton”, 358–429. • 2015: • “Pruners and trainers of the Celtic family tree: The rise and development of Celtic in the light of language contact”, in
Proceedings of the XIV International Congress of Celtic Studies Maynooth 2011. Eds. Liam Breatnach, Ruairí Ó hUiginn, Damian McManus, & Katherine Simms. Dublin:
Dublin Institute for Advanced Studies, 2015, pp. 191–219. • “Recognizing prehistoric sound change caused by language contact: The rise of Irish (c. 100–600 AD)”. Handout from the workshop ‘Managing multilingualism: Contact, attitudes and planning in historical contexts’ at the 48th Annual Meeting of the Societas Linguistica Europaea, Leiden University, 2–5 September 2015.
Reviews • 2003: Review of
UCLA Indo-European Studies Volume 1, edited by Brent Vine & Vyacheslav V. Ivanov,
Kratylos 48: 89–93. • 2006: Review of
Veni Vidi Vici: Die Vorgeschichte des lateinischen Perfektsystems, by Gerhard Meiser,
Kratylos 51: 46–64. ==References==