Etymology

McCullen

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

Irish Mac Cuilinn
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The story

  1. Irish · derived fromMac Cuilinn“son of Cuileann”
  2. English todayMcCullen

Anglicized form of Irish Mac Cuilinn (“son of Cuileann”), a byname from cuileann (“holly”).

Etymology from Wiktionary, CC BY-SA 4.0.