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Surname meaning for "Mullaney"
Irish (Connacht): Anglicized form of Gaelic‘descendant of Maoilsheanaigh’, a personal name meaning ‘devotee of (Saint) Seanach’, a personal name based on sean ‘ancient’, ‘old’. Because most Connacht spellings omit the Sh (pronounced as h), it has been suggested that the original name might have been ‘descendant of Maoileanach’, a personal name meaning ‘chief of the marsh’. There was a different Ulster family of this name, now extinct in Ireland.