Submitted NameRevisions Save Type Surname (from given name) Usage Irish Edit Status Status [show contributorshide contributors] Added 8/14/2012 by erb816 Edited 8/14/2012 by erb816 Meaning & History Anglicized form of Ó Gradaigh, meaning "descendant of Gradaigh." Gradaigh is a personal name derived from the Irish Gaelic word grada, "the illustrious one."