Some Insights into the History of Breton: Context and Perspectives on the Genesis of Old Breton

Bauer, B., 2008, Studien zu den Altbretonischen Glossen, Vienna: Universität Wien, Masters thesis. https://doi.org/10.25365/thesis.685

Beltrán Lloris, F., Carlos Jordán Cólera, C., 2017, Celtiberian. Language | Writing | Epigraphy, Zaragoza: Prensas de la Universidad de Zaragoza.

Bernier, G., 1970, ‘La stèle épigraphe de Plumergat (Morbihan)’, Annales de Bretagne et des pays de l’Ouest 77(4), 655–67. https://doi.org/10.3406/abpo.1970.2557

Bisagni, J., 2020, ‘Breton Manuscripts and the Transmission of Computus between the Celtic West and the Carolingian Empire’, Kelten 82 [online] https://kelten.vanhamel.nl/k82-2020-bisagni-jacopo-computus-brittany-manuscripts-columbanus-hisperic (Last accessed 24 July 2025).

Blom, A. H., 2009, ‘Gallica lingua, lingua celtica: Gaulish, Gallo-Latin or Gallo-Romance?’, Keltische Forschungen, 4, 7–54.

Blom, A. H., 2011, ‘Endlicher’s Glossary’, Études Celtiques 37, 159–181. https://doi.org/10.3406/ecelt.2011.2332

Blom, A. H., 2017, Glossing the Psalms. The Emergence of the Written Vernaculars in Western Europe from the Seventh to the Twelfth Centuries, Berlin/Boston: de Gruyter. https://doi.org/10.1515/9783110501865

Blom, A. H., 2023, ‘Gaulish in the Late Empire (c. 200–600 CE)’, in: Mullen, A., Woudhuysen, G., eds., Languages and Communities in the Late-Roman and Post-Imperial Western Provinces, Oxford: Oxford University Press, 129–54. https://doi.org/10.1093/oso/9780198888956.003.0005

Brett, C., 2011, ‘Soldiers, Saints, and States? The Breton Migrations Revisited’, Cambrian Medieval Celtic Studies 61, 1–56.

Brett, C., Edmonds, F., Russell, P., 2021, Brittany and the Atlantic Archipelago, 450–1200: Contact, Myth and History, Cambridge: Cambridge University Press. https://doi.org/10.1017/9781108760102

Broudic, F., 1995, A la recherche de la frontière. La limite linguistique entre Haute- et Basse-Bretagne aux XIX^e et XX^e siècles, Brest: Emgleo Breiz.

Broudic, F., 2017, ‘Bretagne’, in: Reutner U., ed., Manuel des francophonies, Berlin/New York: De Gruyter, 149–168. https://doi.org/10.1515/9783110348217-007

Carpentier, V., 2017, ‘L’immigration scandinave sur le continent au X^e siècle: un invisible archéologique ?’, in: Garcia, D., Le Bras, H., eds., Archéologie des migrations [Archeology of migrations], Paris: La Découverte, 255–266. https://doi.org/10.3917/dec.garci.2017.01.0255

Coumert, M., 2010, ‘Le peuplement de l’Armorique : Cornouaille et Domnonée de part et d’autre de la Manche aux premiers siècles du Moyen Age’, in: Coumert, M., Tétrel H., eds., Histoires des Bretagnes 1. Les mythes fondateurs [Stories of Britain 1. Founding myths], Brest: CRBC, 2010, 15–42. https://doi.org/10.4000/13c02

Darling, M., 2024, ‘Celtic Influence in the Latin of the Curse Tablet from Ratcliffe-on-Soar (Nottinghamshire)’, Zeitschrift für celtische Philologie 71, 129–154. https://doi.org/10.1515/zcph-2024-0004

Davies, W., Koch, J.Y., Le Duc, G., Graham-Campbell, J., Handley, M.A., Kershaw, P., & Lockyear, K., 2000, The Inscriptions of Early Medieval Brittany. Les inscriptions de la Bretagne du Haut Moyen Âge, Oakville (CT): Celtic Studies Publications.

Delamarre, X., 2018 [2003], Dictionnaire de la langue gauloise. Une approche linguistique du vieux-celtique continental, Paris, Éditions Errance, 3rd edition.

Deshayes, A., 2003, Dictionnaire étymologique du breton, Douarnenez: Le Chasse-Marée.

Deuffic, J. L., 2025, ‘“Et priez pour le povre Allain…”, Un auteur breton méconnu: Alain de Château Trô (8 novembre 1451)’ [online] https://www.academia.edu/41557711/Alain_de_Chasteau_Tournant (Last accessed 18 March 2025).

Dumville, D. N., 2005, ‘Writers, Scribes and Readers in Brittany, AD 800-1100: The Evidence of Manuscripts’, in: Fulton H., ed., Medieval Celtic Literature and Society, Dublin: Four Courts Press, 49–64.

Evans, D. Simon, 1964, A Grammar of Middle Welsh, Dublin: Dublin Institute for Advanced Studies.

Evans, D. Ellis, 1990, ‘Insular Celtic and the Emergence of the Welsh Language’, in: Bammesberger A., Wollmann, A., eds., Britain 400–600: Language and History, Heidelberg: Winter, 149–177.

Fagon, C., 2004, ‘Changement du /z/ en /h/ en Léon : continuité du brittonique en breton moderne et regard sociolinguistique des locuteurs sur ce phénomène’, La Bretagne linguistique 13, 73–84. https://doi.org/10.4000/lbl.3468

Falc’hun, F., 1948, ‘L’influence romane et la répartition géographique des infinitifs en -A, -O, -I, du breton’, Annales de Bretagne et des pays de l’Ouest 55(1), 121–128. https://doi.org/10.3406/abpo.1948.1860

Falc’hun, F., 1981, Perspectives nouvelles sur l’histoire de la langue bretonne, Paris: Union Générale d’Editions.

Favereau, F., 1997, Grammaire du breton contemporain. Yezhadur ar brezhoneg a-vremañ, Morlaix: Skol Vreizh.

Favereau, F., 2022, Histoire du breton écrit des origines au XVIII^e siècle, Morlaix: Skol Vreizh.

Fleuriot, L., 1958, ‘Recherches sur les enclaves romanes anciennes en territoire bretonnant’, Etudes celtiques 8, 164–178. https://doi.org/10.3406/ecelt.1958.1309

Fleuriot, L., 1964a, Le vieux breton. Eléments d’une grammaire. Thèse principale pour le doctorat ès lettres présentée à la Faculté des Lettres et Sciences Humaines de l’Université de Paris, Paris: Klincksieck, 271–273.

Fleuriot, L., 1964b, Dictionnaire des gloses en vieux breton, Paris: Klincksieck.

Fleuriot, L., 1978a, ‘Brittonique et Gaulois durant les premiers siècles de notre ère’, in: Étrennes de septantaine. Travaux de linguistique et de grammaire comparée oferts à Michel Lejeune par un groupe de ses élèves, Paris: Klincksieck, 75–83.

Fleuriot, L., 1978b, ‘Compte rendu de Gabriel Guillaume et Jean-Paul Chauveau Atlas linguistique et ethnographique de la Bretagne Romane, de l’Anjou et du Maine (Atlas Linguistique Armoricain Roman), volume I, Editions du CNRS, Paris, 1975’. Bulletin de la Société de Linguistique de Paris 73(2), 322–329.

Fleuriot, L., 1980, Les origines de la Bretagne. L’émigration, Paris: Payot, 61–63.

Fleuriot, L., 1985, ‘Evolutions anciennes et récentes du Breton’, La Bretagne linguistique 1, 87–97. https://doi.org/10.4000/lbl.7871

Fleuriot, L., 1987, ‘Langue et société dans la Bretagne ancienne’, in: Fleuriot, L., Ségalen, A.P., eds., Histoire littéraire de la Bretagne, 1 Héritage celtique et captation française [Literary and cultural history of Brittany, 1 Celtic heritage and French attraction], Paris/Genève: Champion/Slatkine, 7–28.

Fleuriot, L., Evans, C., 1985, A Dictionary of Old Breton / Dictionnaire du vieux breton. Historical and comparative, Toronto: Prepcorp.

Gautier, A., 2021, ‘Vernacular Languages in the Long Ninth Century: Towards a Connected History’, Journal of Medieval History 47(4-5), 433–450. https://doi.org/10.1080/03044181.2021.1972693

German, G., 1987, ‘L’histoire phonologique du déterminant défini et indéfini à Saint-Yvi en Cornouaille selon les observations faites par de Jubainville à Fouesnant en 1874’, La Bretagne linguistique 3, 157–168. https://doi.org/10.4000/lbl.8275

German, G., 2008, ‘Language Shift, Diglossia and Dialectal Variation in Western Brittany: the Case of Southern Cornouaille’, in: Tristram H.L.C., ed., The Celtic Languages in Contact: Papers from the Workshop within the Framework of the XIII International Congress of Celtic Studies, Bonn, July 2007, Potsdam, 146–192.

Grévin, B., 2012, Le parchemin des cieux. Essai sur le Moyen Âge du langage, Paris: Seuil. https://doi.org/10.14375/NP.9782020878944

Guy, B., 2014, ‘The Breton Migration: A New Synthesis’, Zeitschrift für celtische Philologie 61, 101–156. https://doi.org/10.1515/zcph.2014.006

Haarmann, H., 1973, Der lateinische Lehnwortschatz im Bretonischen, Hamburg: Helmut Buske Verlag.

Hemon, R., 1975, A Historical Morphology and Syntax of Breton, Dublin: DIAS.

Hughes, A.J., 2015, ‘Greek (σ)τεγος “roof”, Old Irish teg, Clare Irish [tʹe’] “house”: A Stratified Reappraisal of “house” in Pan-Gaelic’, in: Oudaer, G., Hily, G., Le Bihan, H., eds., Mélanges en l’honneur de Pierre-Yves Lambert, Rennes: Tir, 139–183.

Humphreys, H. L., 1991, ‘The Geolinguistics of Breton’, in: Williams C.H., ed., Linguistic Minorities, Society, and Territory, Clevedon: Multilingual Matters, 96–120.

Iosad, P., 2005, ‘Brythonic “Second Lenition” Revisited: Theoretical and Typological Considerations on the Rise of Brythonic Voiceless Spirants’, Second Colloquium of Societas Celto-Slavica 14-16 September 2005, Moscow.

Irslinger, B., 2009, ‘Singulativ und Kollektiv in den britannischen Sprachen’, in: Hinrichs, U., Reiter, N., Tornow, S., Büttner, U., eds., Eurolinguistik. Entwicklungen und Perspektiven. Akten der internationalen Tagung vom 30.9. – 2.10. 2007 in Leipzig, Wiesbaden: Harrassowitz Verlag, 233–253.

Jackson, K.H., 1953, Language and History in Early Britain. A Chronological Survey of the Brittonic Languages First to Twelfth Century A.D., Edinburgh: Edinburgh University Press.

Jackson, K.H., 1967, A Historical Phonology of Breton, Dublin: DIAS.

Jones, M., 2003, ‘The Use of French in Medieval Brittany’ in: Guyotjeannin O., ed., La langue des actes. Actes du XIe Congrès international de diplomatique (Troyes, jeudi 11-samedi 13 septembre 2003), Éditions en ligne de l’École des Chartes (Élec), 2003 [online] http://elec.enc.sorbonne.fr/CID2003/jones (Last accessed 25 August 2025).

Kerkhof, P.A., 2018, Language, Law and Loanwords in Early Medieval Gaul. Language Contact and Studies in Gallo-Romance Phonology, Leiden, Leiden University, PhD thesis. https://hdl.handle.net/1887/66116

Kleinhenz, C., Busby, K., 2010, Medieval Multilingualism. The Francophone World and its Neighbours, Turnhout: Brepols. https://doi.org/10.1484/M.TCNE-EB.6.09070802050003050208030703

Koch, J.T., 1989, ‘Neo-Brittonic Voiceless Spirants from Old Celtic Geminates’, Ériu 40, 119–128.

Koch, J.T., 1992, ‘Gallo-Brittonic vs. Insular Celtic’, in: Le Menn, G., Le Moing, J.Y., eds., Bretagne et pays celtiques. Langues, histoire, civilisation. Mélanges oferts à la mémoire de Léon Fleuriot (1923-1987), Saint-Brieuc/Rennes: Skol/Presses Universitaires de Rennes, 471–495.

Kuteva, T., Heine, B., Hong, B., Long H., Narrog, H., Rhee S., 2019 [2002], World Lexicon of Grammaticalization, Cambridge: Cambridge University Press, 299–301. https://doi.org/10.1017/9781316479704

Lambert, P.Y., 1987, ‘Nouvelles orientations de recherche dans l’étude des gloses celtiques (et en particulier brittoniques)’, La Bretagne Linguistique 3, 99–105. https://doi.org/10.4000/lbl.8110

Lambert, P.Y., 2012, ‘Notes de vieux-breton’, Études celtiques 38, 271–278. https://doi.org/10.3406/ecelt.2012.2357

Le Berre, Y., 2009, ‘A propos du Stabat Mater breton de Tanguy Guéguen (1622) : le “moyen-breton” existe-t-il ?’ [About Tanguy Guéguen’s Breton Stabat Mater (1622): does ‘Middle Breton’ exist?], La Bretagne linguistique 14, 13–24. https://doi.org/10.4000/lbl.2324

Le Dû, J., 2013, ‘Le breton, une langue periromane?’, Estudis Romànics 35, 313–321. https://doi.org/10.2436/20.2500.01.128

Le Gallo, Y., 1969, Bretagne, Grenoble: Arthaud.

Loth, J., 1883, L’émigration bretonne en Armorique du V^e au VII^e siècle de notre ère, Paris: A. Picard.

Loth, J., 1892, Les mots latins dans les langues brittoniques (Gallois, Armoricain, Cornique). Phonétique et commentaire avec une introduction sur la romanisation de l’île de Bretagne, Paris: Emile Bouillon.

Lunven, A., 2016, ‘Bretons’, in: Dumézil, B., ed., Les Barbares, Paris: PUF.

Machan, T.W., 2022, English Begins at Jamestown. Narrating the History of a Language, Oxford: Oxford University Press. https://doi.org/10.1093/oso/9780198846369.001.0001

Martinet, A., 1952, ‘Celtic Lenition and Western Romance Consonants’, Language 28(2), 192–217. https://doi.org/10.1017/410513

Matasović, R., 2007a, ‘Insular Celtic as a language area’, in: Tristram H.L.C., ed., The Celtic Languages in Contact: Papers from the Workshop within the Framework of the XIII International Congress of Celtic Studies, Bonn, 26–27 July 2007, Potsdam: Potsdam University Press, 93–112.

Matasović, R., 2007b, ‘Insular Celtic: Linguistic Area, Genealogical Node, or Both?’, in: Ureland, S., Lodge, A., Pugh, S., eds., Language Contacts and Minority Languages on the Littorals of Europe, Berlin: Logos Verlag, 111–135.

McCone, K.R., 2006, The Origins and Development of the Insular Celtic Verbal Complex, Maynooth: The Department of Old Irish, National University of Ireland.

Moseley, C. 2010, Atlas of the World’s Languages in Danger, 3rd edition, Paris: UNESCO Publishing.

Mullen, A., Ruiz Darasse, C., 2018, Gaulish. Language | Writing | Epigraphy, Zaragoza: Prensas de la Universidad de Zaragoza.

Parsons, D.N., 2011, ‘Sabrina in the Thorns: Place‐Names as Evidence for British and Latin in Roman Britain’, Transactions of the Philological Society 109(2), 113–137. https://doi.org/10.1111/j.1467-968X.2011.01276.x

Parsons, D.N., 2023, ‘The Romance of Early Britain: Latin, British, and English, c. 400–600’, in Mullen A. & Woudhuysen G., eds., Languages and Communities in the Late-Roman and Post-Imperial Western Provinces, Oxford: Oxford University Press, 236–267. https://doi.org/10.1093/oso/9780198888956.003.0009

Pitre-Chevalier, 1845, Bretagne et Vendée. Histoire de la Révolution française dans l’ouest, Paris: W. Coquebert.

Rutten, G., Salmons, J., Vandenbussche, W., Vosters, R., 2017, ‘Unraveling Multilingualism in Times Past’, Sociolinguistica 31, 9–20. https://doi.org/10.1515/soci-2017-0002

Sims-Williams, P., 1991, ‘The Emergence of Old Welsh, Cornish and Breton Orthography, 600–800: The Evidence of Archaic Old Welsh’, Bulletin of the Board of Celtic Studies 38, 20–86.

Sims-Williams, P., 2017, ‘Celtic’, in: Kapović, M., ed., The Indo-European Languages, London/New York: Routledge, 352–386.

Schrijver, P., 2009, ‘Celtic Influences on Old English: Phonological and Phonetic Evidence’, English Language and Linguistics 13(2), 193–211. https://doi.org/10.1017/S1360674309002986

Schrijver, P., 2011, ‘Old British’ in: Ternes E., ed., Brythonic Celtic — Britannisches Keltisch. From Medieval British to Modern Breton, Bremen: Hempen Verlag.

Schrijver, P., 1998–2000, ‘The Châteaubleau Tile as a Link between Latin and French and between Gaulish and Brittonic’, Études celtiques 34(1), 135–142. https://doi.org/10.3406/ecelt.1998.2133

Smith, J.C., 2002, ‘Middle French: When? What? Why?’, Language Sciences 24(3), 423–445. https://doi.org/10.1016/S0388-0001(01)00042-0

Solliec, T., 2021, Distance linguistique et dialectométrie, une application à la langue bretonne. Enjeux, méthodologie et interprétations [A dialectometric study of the Breton language: issues, methodology and interpretations], Brest: University of Western Brittany. Unpublished PhD thesis.

Stifter, D., 2020, Cisalpine Celtic. Language | Writing | Epigraphy, Zaragoza: Prensas de la Universidad de Zaragoza.

Tanguy, B., Lagrée, M., 2002, Atlas d’histoire de Bretagne, Morlaix: Skol Vreizh.

Timm, L.A., 1983, ‘The Shifting Linguistic Frontier in Brittany’, in: Agard, F. B., Kelly, G., Makkai, A., Becker Makkai, V., eds., Essays in Honor of Charles F. Hockett, Leyden: Brill, 443–457.

Trudgill, P., 2011, Sociolinguistic Typology. Social Determinants of Linguistic Complexity, Oxford: Oxford University Press.

Trudgill, P., 2020, Millennia of Linguistic Change. Sociolinguistic Studies in Deep Historical Linguistics, Cambridge: Cambridge University Press. https://doi.org/10.1017/9781108769754

Vallerie, E., 1995, Traité de toponymie historique de la Bretagne [Treatise on the historical toponymy of Brittany], Ar Releg-Kerhuon: An Here.

Van Doorn, A., 2016, On the Gaulish Infuence on Breton, Leiden: Leiden University, Masters Thesis.

Woolf, A., 2007, ‘Apartheid and Economics in Anglo-Saxon England’, in: Higham N., ed., Britons in Anglo-Saxon England, Woodbridge: Boydell & Brewer, 115–129. https://doi.org/10.1515/9781846155185-015