Etymology

Costigan

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

Irish Mac Oistigín
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The story

  1. Irish · derived fromMac Oistigín“son of Oistigín”
  2. English todayCostigan

Anglicized form of Irish Mac Oistigín (“son of Oistigín”), probably a Gaelicized form of the personal name Hodgkin.

Etymology from Wiktionary, CC BY-SA 4.0.