Etymology

Rainey

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

Irish Ó Raighne
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The story

  1. Irish · derived fromÓ Raighne“descendant of Raighne”
  2. English todayRainey

Reduced Anglicized form of Irish Ó Raighne (“descendant of Raighne”), a Gaelicized form of the Old Norse personal name Rognvaldr.

Etymology from Wiktionary, CC BY-SA 4.0.