[Ir., man of yew].
Magical harper best known for his progeny. In Cath Maige Mucrama [The Battle of Mag Mucrama] he is seen playing in a yew tree over a waterfall; he has the power to play so sadly as to make everyone weep, so merrily that everyone will laugh, and such a lullaby as to make everyone sleep. Whether he is the son or brother of Eógabal is disputed in different texts; T. F. O'Rahilly (1946) asserted that Fer Í and Eógabal are identical. Fer Í was the foster-son of Manannán mac Lir. He was the father of Aacute;ine (1) of Knockainy, Co. Limerick, and her sister and possible double, Grian. See also FER FIDAIL.