Etymology

O'Gara

Today it means: A surname from Irish. Full definition →

Irish Ó Gadhra
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The story

  1. Irish · derived fromÓ Gadhra“descendant of Gadhra”
  2. English todayO'Gara

Anglicized form of Irish Ó Gadhra (“descendant of Gadhra”), a personal name derived from gadhar (“hound, mastiff”).

Etymology from Wiktionary, CC BY-SA 4.0.