Móinbhíol
MÓINBHÍOL—XI—Mandevill, Mandefill, Monfield, Mansfild, Maunsfield, Mandeville, and in Co. Waterford Mansfield; a variant of de Móinbhíol, which see; sometimes pronounced Múinbhíol. The assimilation to Mansfield is old in Waterford.
Alphabetical Index to Irish Surnames