72%RatingSave Gender Feminine Usage Cornish Meaning & History Possibly from Old Cornish mab meaning "son". This was the name of a 6th-century Cornish saint, said to be one of the children of Brychan Brycheiniog. She is now regarded as a woman, but some early sources describe her as a man. Related Names Rootmakwos Categories family, isograms, men, saints, uncertain etymology, women, youth