Padraig Mac Giolla-Domhnaigh

Gray—This name in Ulster and Scotland is one of the three colour names assumed by septs of the Clan Lamond, Black being already referred to.

McAreavy is a form as also is Reavy, in Gaelic Mac Giolla-Riabhaich, from riabhach, brindled; also anglicised M'Ilwraith.

It is also the anglicised form of the Irish sept name Culreavy and Colreavy in the districts of Ballinalee and Drumlish in Co. Longford; Mohill in Co. Leitrim, and in Cavan. In Gaelic Mac Cúilriabhaigh, and of Greevy, a sept that occupied a district in the Barony of Boyle, Co. Roscommon. Father Woulfe gives it also the anglicised form of Greyhan, Greaghan, and Greahan in Co. Roscommon (O'Gréacháin).

Alphabetical Index of Anglicised Surnames in Ireland

See also Woulfe’s Irish Names and Surnames
and O'Hart's Irish Pedigrees