Comerford
Comerford—At Granard, in North Longford, and in Co. Cavan and other parts of Southern Ulster the Irish sept name, Cumisky, and its other forms, in Gaelic Mac Cumascaigh, has been changed to the Norman name, Comerford.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees