This is a list of names in which the origin is Medieval Breton. Breton is a Celticlanguage spoken in Brittany in northwest France.
GwenaëlmFrench, Breton Means "blessed and generous" from Breton gwenn meaning "white, blessed" and hael meaning "generous". Saint Gwenhael was a 6th-century abbot of Brittany.
GwennegmBreton Derived from Breton gwenn meaning "white, blessed" combined with a diminutive suffix. Saint Gwenneg was an 8th-century monk of Brittany.
HarveymEnglish From the Breton given name Haerviu, which meant "battle worthy", from haer "battle" and viu "worthy". This was the name of a 6th-century Breton hermit who is the patron saint of the blind. Settlers from Brittany introduced it to England after the Norman Conquest. During the later Middle Ages it became rare, but it was revived in the 19th century.
Joycef & mEnglish From the medieval masculine name Josse, which was derived from the earlier Iudocus, which was a Latinized form of the Breton name Judoc meaning "lord". The name belonged to a 7th-century Breton saint, and Breton settlers introduced it to England after the Norman Conquest. It became rare after the 14th century, but was later revived as a feminine name, perhaps because of similarity to the Middle English word joise "to rejoice". This given name also became a surname, as in the case of the Irish novelist James Joyce (1882-1941).