Etymology

McKiernan

M3C3K5I1E1R1N1A1N1

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

Irish Mac Thighearnáin
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Irish · derived fromMac Thighearnáin“son of Thighearnán”
  2. English todayMcKiernan

Anglicized form of Irish Mac Thighearnáin (“son of Thighearnán”), a diminutive of tighearna (“lord, master”).

Etymology from Wiktionary, CC BY-SA 4.0.