Brittonic

comparative more Brittonic · superlative most Brittonic

1. Brythonic; pertaining to the Celtic people inhabiting Britain before the Roman conquest, and to their language.First known use 19th c.

   The Welsh language is not a backwards, insignificant thing; it is a fundamental part of Britain’s collective history. 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.

   2014 July 23, Ellie Mae O'Hagen, The Guardian

1. The group of Insular Celtic languages.First known use 20th c.