Etymology

Mulvaney

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

Irish Ó Maoilmheana
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The story

  1. Irish · derived fromÓ Maoilmheana“descendant of the chieftain of the Main river”
  2. English todayMulvaney

Anglicized form of Irish Ó Maoilmheana (“descendant of the chieftain of the Main river”).

Etymology from Wiktionary, CC BY-SA 4.0.