Mac Duinnshléibhe
Mac DUINNSHLÉIBHE—IV—M'Donleiwe, M'Donleve, M'Donleavy, Dunlief, Dunlop; 'son of Donnshléibhe' (an Irish personal name, meaning 'Donn of the mountain'); now changed to Mac Dhuinnshléibhe, Ó Duinnshléibhe, which see.
Alphabetical Index to Irish Surnames