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 (brĭ-tŏn′ĭk) also Bry·thon·ic (-thŏn′-)
The subdivision of the Insular Celtic languages that includes Welsh, Breton, and Cornish.

[Ultimately from Latin Brittonēs, Britons; see Briton.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, adj
(Languages) another word for Brythonic
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(brɪˈθɒn ɪk)

also Brittonic

1. the subgroup of modern Celtic languages represented by Welsh, Cornish, and Breton.
2. the Celtic language ancestral to these languages; British Celtic.
3. of or pertaining to Brythonic.
[1884; < Welsh Brython Briton]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Cursory research reveals that Manchester's etymology is the Latin 'Mamucium' which in turn comes from the Brittonic name 'mam' meaning 'breast', referring to a 'breast-like hill'.
The name Threave is identified with "tref ", a possibly sixth century but more likely ninth century Brittonic or Old Welsh place name, indicating the site was occupied long before the present tower and fortifications.
Barry Lewis examines the lack of a tradition of origins of conversion in the Brittonic areas, noting surviving sources focusing on the (re)conversion of bad Christians rather than pagans.
The History of the Kings of Britain by Geoffrey of Monmouth was accepted within the context of this development, for he tried to create a totally new version of the ecclesiastical history of the island, in the center of which a "Brittonic" church was placed.
I find it absurd that so few English people realise it is still spoken in families and communities across Wales, as part of a Brittonic culture which has survived through the ages."
For the majority who have no understanding of these underthreat Brittonic languages, it is easy to understand the beautiful sonic efforts to preserve and promote a cultural identity.
The Bretons trace much of their heritage to groups of Brittonic speakers who emigrated from Great Britain, including Cornwall and Wales, to avoid invading Germanic tribes.
The bulk of the papers are densely linguistic, and mainly concern themselves with Irish--and to a lesser degree, Scottish--Gaelic, but other languages, Brittonic and some reflections on the Indo-European roots of modern language are also present.
Martial valour was, of course, only one of several monarchical traits that were taken up by writers producing nationalist texts that placed Elizabeth's reign within larger Brittonic histories.
In the other 4 derivatives the suffix could refer to both 'a certain nationality/origin' and 'the language of a certain nationality' as in, e.g., Brittisc 'British, referring to Brittonic speakers', Bryt-wylisc 'British, referring to Brittonic speakers', Denisc 'Danish (i.e., Norse, Scandinavian)', or Scottisc 'Scottish'.
A Chronological Survey of the Brittonic Languages First to Twelfth Century AD.
Archaeological evidence such as Gaulish curse texts, Celtic Latin Curse tablets from the Alpine regions of Britain, and fragments of Old Brittonic tablets uncovered from Roman Bath is contemplated at length.