Topic summary
Brython
Extracted from the Wikipedia article Celtic Britons.
Name
The medieval Welsh form of Latin Britanni was Brython (singular and plural). Brython was introduced into English usage by John Rhys in 1884 as a term unambiguously referring to the P-Celtic speakers of Great Britain, to complement Goidel; hence the adjective Brythonic refers to the group of languages. "Brittonic languages" is a more recent coinage (first attested in 1923 according to the Oxford English Dictionary).