Etymology

McGranahan

M3C3G2R1A1N1A1H4A1N1

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

Irish Mac Reannacháin
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The story

  1. Irish · derived fromMac Reannacháin“son of Reannachán”
  2. English todayMcGranahan

Anglicized form of Irish Mac Reannacháin (“son of Reannachán”), a personal name derived from a diminutive of reannach, variant of rinneach (“pointed, sharp; keen, biting”).

Etymology from Wiktionary, CC BY-SA 4.0.