Как по Английски будет bruthonisch

adjective

Denoting or relating to the southern group of celtic languages, consisting of welsh, cornish, and breton. they were spoken in britain before and during the roman occupation, surviving as welsh and cornish after the anglo-saxon invasions, and being taken to brittany by emigrants.

Примеры использования:

Welsh, or cymraeg, is a celtic language belonging to the brythonic group consisting of breton, wels…

noun

The brythonic languages collectively.

Примеры использования:

Insular celtic, usually further divided into: british or brythonic (from brython a briton) and iris…