You searched for: “briton
Breton, Britain, Briton
Breton (BRET'n) (adjective)
Relating to Brittany or its people, language (Celtic), or culture: Leo emphasized that he was a Breton from Brittany, not a Briton from Great Britain.
Britain (BRIT'n) (noun)
Great Britain: England, Scotland, and Wales. It is separated from the mainland of Europe by the English Channel and from Ireland by the Irish Sea: Oscar and Emily had a very interesting trip to Great Britain last summer.
Briton (BRIT'n) (noun)
A native or inhabitant of Great Britain: Winston Churchill is considered to have been a noble Briton.

Tracy's uncle described himself as a Breton whose ancestors long ago immigrated to Britain; after that, her relatives were considered to be from Briton.