Submitted NameRevisions Save Type Surname (from given name) Usage Irish Pronounced Pron. GE-rah-tee [key] Edit Status Status [show contributorshide contributors] Added 12/24/2018 by ari. Edited 12/24/2018 by ari. Meaning & History Anglicised form of the Gaelic Mag Oireachtaigh, meaning "son of Oireachtach", which in turn means "member of the assembly".