(From Edward McLysaght?)

Mac aoda -IV-M'Ea, MacKay, MacKey, MacKee, MacCoy, MacHugh, Eason, Hughes, Hueson, Hewson, etc.; 'son of aod'' (a common Irish personal name, now angl. Hugh); a very common surname, especially in Ulster and Connaught. There are several distinct families so called. In the barony of Clare, Co. Galway, Mac aoda, of the same stock as the O'Flahertys, was chief of Clann Choscraigh. The MacKays of Strathnaver were a well-known Scottish clan, some of whom are, doubtless, to be found among the MacKays of the north of Ireland. The angl. form MacCoy is almost peculiar to Co. Limerick, whither the family migrated from Ulster more than three centuries ago. V. Mac aoid and Mag aoda, which are variants.