Etymology

mooney

M3O1O1N1E1Y4

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

Irish Ó Maonaigh
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The story

  1. Irish · derived fromÓ Maonaigh“descendant of Maonach”
  2. English todayMooney

Reduced Anglicized form of Irish Ó Maonaigh (“descendant of Maonach”), a personal name derived from maoineach (“rich, wealthy; precious, beloved”).

Etymology from Wiktionary, CC BY-SA 4.0.