Etymology

McCoskey

M3C3C3O1S1K5E1Y4

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

Irish Mac Coscraich
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The story

  1. Irish · derived fromMac Coscraich“son of Coscrach”
  2. English todayMcCoskey

Perhaps a variant of McCaskey or an Anglicized form of Irish Mac Coscraich (“son of Coscrach”).

Etymology from Wiktionary, CC BY-SA 4.0.