Brythonicadj.n.

1879 J. Rhys Lect. Welsh Philol. (ed. 2) i. 15 As to the Celts of the British Isles and Brittany, all are agreed that they divide themselves naturally into two branches, the one Brythonic [ed. 1 uses Kymric] and the other Goidelic.

1923 J. Fraser Hist. & Etymol. 15 Rhys's view that Pictish was a non-Indogermanic language involves the same fallacy as the view that it was Goidelic or Brythonic.

1945 Language 21 96 Welsh peuo is the regular p-Celtic continuant of IE *q^uēpo- (IE q^u > Brythonic p; IE -p- vanishes).

1953 K. Jackson Lang. & Hist. in Early Brit. 3 Until fairly recently, the term Brythonic, coined by Rhys, was regularly used to describe the language brought to Britain by the bearers of that variety of primitive Celtic speech known as P-Celtic.

1998 A. Dalby Dict. Langs. 115/1 In the 5th and 6th centuries Brythonic speakers migrated in large numbers from southern England to north-western France.

2005 R. Nidel World Music: Basics ii. 98 Bretagne: Approximately 1,500 years ago British Celts, who spoke a Brythonic dialect now called Breton, invaded Brittany.

1879 J. Rhys Lect. Welsh Philol. (ed. 2) i. 35 In the course of many centuries these differences had become so many and such that they could no longer be said to speak one language, but two nearly related languages, Goidelic in Ireland, and Brythonic here.

1887 Celtic Mag. 12 437 x may appear in modern Brythonic as ch.

1911 Encycl. Brit. XXVIII. 268/2 In Brythonic, primitive Celtic qu became p.

a1981 G. B. Adams in M. Barry & P. Tilling Eng. Dial. Ulster (1986) 9 Some proper names..suggest that the Picts were partly Celtic and spoke a language which was P-Celtic though not identical with Brythonic.

2006 Western Mail (Cardiff) 16 Sept. 12 The Welsh language developed from the ancient British tongue, Brythonic.