n [ U ]
the Celtic language that used to be spoken in Cornwall , England. There are no people left who speak it as their first language, but there is a political party, Mebyon Kernow (‘Sons of Cornwall’), that tries to encourage its use.
CORNISH
Meaning of CORNISH in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005