Etymology

Cú Chulainn

Today it means: The pre-eminent hero of Ulster in the Ulster Cycle, almost undefeatable due to his spear the Gae Bulg, but cursed to reach an early grave; son of Lugh and Deichtine. Full definition →

Old Irish Cú Chulainn
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The story

  1. Old Irish · borrowed fromCú Chulainn
  2. English todayCú Chulainn

From Old Irish Cú Chulainn (literally “hound of Culann”). The latter name could be related to Ancient Greek κυλλός (kullós, “crooked, crippled”).

Etymology from Wiktionary, CC BY-SA 4.0.