MONROE

(origin: Local) Monadh Roe or Mont Roe, from the mount on the river Roe, in Ireland, whence the family came. Moine Roe, a mossy place on the Roe; M'unroe, from, of, or about the Roe. The river is sometimes written Munree.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.