Minver is an anglicization of the Cornish, Menvra, which is of uncertain meaning, but may possibly be a Cornish form of the Germanic, Menefreda, which is composed of the Germanic elements, magan meaning “strength” and frid meaning, “peace.”
The name was borne by a legendary Cornish saint, one of the 24 children of Saint Brychan. St. Minver was said to have been attacked by the devil while combing her hair. He ran away with a dent in his head after she had thrown her comb at him.
There is a town in Cornwall named for the parish of St. Minver.
Other forms of the name include: Menefrew, Menwreda and Mynfreda.
Possible nicknames are the obvious Minnie.