Definition from Wiktionary, the free dictionary
Cairbre Nia Fer
- (Irish mythology) The king of Tara during the Ulster Cycle of Irish mythology, who was killed by Cúchulainn in the Battle of Ros na Ríg. Son-in-law of Conchobar mac Nessa and cousin-in-law of Conall Cernach. Husband of Fedelm Noíchrothach. Father of Erc and Achall.