Aine (f) 'joy'; 'praise'; also 'fasting'.
Aine was said to be the queen of the South Munster fairies, living at Knockany (Cnoc Aine - 'Aine's hill'). The name is still used in Ireland. It has tended to become confused with Anne. There have been various attempts to anglicise it as Anna, Hannah and, perhaps, Anastasia.