Mag Labhraidhín
Mag LABHRAIDHÍN—IV—M'Glafferine, Maglowrine, M'Claverine; 'son of Labhraidhín' (a diminutive of Labhraidh); a rare Ulster surname; now probably obsolete, or replaced by some variant, as Mac Labhráin, which see.
Alphabetical Index to Irish Surnames