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Which modern languages belong to the Brythonic group of Celtic languages?
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Celtic languages
Britannica editor Jeff Wallenfeldt provides an overview of the Irish language.
The Brythonic group of Celtic languages—often referred to as P-Celtic due to the development of the p sound from the ancestral Indo-European kʷ—consists of three modern languages:
- Welsh: Spoken primarily in Wales, it is the most widely spoken of the group.12
- Cornish: Historically spoken in Cornwall, this language became extinct by the 19th century but has undergone a revival in the 20th and 21st centuries.13
- Breton: Spoken in the Brittany region of northwestern France, it is most closely related to Cornish.13