Ó Fuarghuis
Ó FUARGHUIS—I—O Fworishe; 'descendant of Fuarghus' (cold-choice); a Connacht surname, of which Ó Fuaruisce (which see) is probably a corruption. By the aspiration of the initial f it has become Ó hUarghuis, which see.
Alphabetical Index to Irish Surnames