Etymology

McGillicuddy

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

Irish Mac Giolla Chuda
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The story

  1. Irish · derived fromMac Giolla Chuda“son of the servant of (Saint) Chuda”
  2. English todayMcGillicuddy

Anglicized form of Irish Mac Giolla Chuda (“son of the servant of (Saint) Chuda”), a personal name of unexplained origin.

Etymology from Wiktionary, CC BY-SA 4.0.