Ériu

[2] The University of Wales derives this from Proto-Celtic *Φīwerjon- (nominative singular Φīwerjō).

[2] The Archaic Irish form was borrowed into Ancient Greek as Ἰέρνη Iernē and Ἰουερνία Iouernia, and into Latin Hibernia.

In the Banshenchas, Ériu is described as the wife of Cetar, while Banba and Fódla are named as the wives of Etar and Detar, respectively.

Both Elatha and Ériu are described in some sources as the children of Delbaeth, indicating they may be half-siblings.

Her foster-father in the Rennes Dindsenchas is named as Codal the Roundbreasted, and it is said that when he fed Ériu on a peak called Benn Codail, it caused the land in Ireland to heave toward the sky, and it would have kept rising until the entire land would have been the peak or otherwise until the sun would have scorched Ériu and the wind pierced her ears.