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McAdoo

Updated June 9, 2019

Family name origins & meanings

Northern Irish (Connacht) : Anglicized form of Gaelic Mac Conduibh ‘son of Cú Dhubh’, a personal name or byname meaning ‘black hound’, from cú ‘hound’ (genitive con) + dubh ‘black’. It is also Anglicized as Cunniff and McNiff.