Etymology

McManus

M3C3M3A1N1U1S1

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

Irish Mac Mághnais
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The story

  1. Irish · derived fromMac Mághnais“son of Magnus”
  2. English todayMcManus

Anglicized form of Irish Mac Mághnais (“son of Magnus”).

Etymology from Wiktionary, CC BY-SA 4.0.