Ai was sometimes recognized as Aoi mac Ollamain, the poet of the Tuatha de
Danann. When Ai's mother was pregnant with him, the house was rocked by a great
wind and a druid was said to have come and foretold that the child which was going
to be born would be gifted with special powers. The king ordered for the child to
be killed. But his father, Olloman, saved him from that fate. The child grew up and
when he was older he asked a boon of the king. Consequently, from his poetical
pleadings, he was given the name Ai which means "poem."
Ellis, Peter Berresford. A Dictionary of Irish Mythology. (Santa Barbara,
California: ABC-CLIO, Inc., 1987). Pages 24.