2the Celtic language of Brittany, related to Cornish.
adjective
1of or relating to Brittany or its people or language.
2denoting a casual striped top, typically white with narrow horizontal blue stripes, of a type loosely associated with French or Breton sailors:just pull on a classic Breton t-shirt
Origin:
early 19th century: from Old French, literally 'Briton'
