Cunniff Family History
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Cunniff Name Meaning
Irish (Connacht): reduced form of McCunniff, an Anglicized form of Gaelic Mac Conduibh ‘son of Condubh’ (earlier Cú Dhubh), a personal name meaning ‘black hound’. This is just one of several Anglicized forms that also include McAdoo and McNiff.
Source: Dictionary of American Family Names ©2013, Oxford University Press