Save Gender Masculine Usage Medieval Dutch Pronounced Pron. /ɣɛr.ˈvaːs/ [key·simplify] Other Forms FormsGerefaes, Gerephaes, Gerevaes, Gerfaes, Gerphaes, Jerefaes, Jerephaes, Jerevaes, Jerfaes, Jerphaes, Jervaes Meaning & History Medieval Dutch form of Gervasius.