... Aoiffe was the wife of Cuchullin in the Ossianic poetry,... The recognized equivalent for Aoiffe was, however, Eva, beginning almost from the first Christian times, so that, until I found Aoiffe in such unquestionably heathen company as Lear and Mananàn, I had made up my mind that she was the Gadhaelic pronunciation of our first mother... (History of Christian Names, Yonge, 1884)

... It was observed before, that Diarmuid, king of Leinster, had a young lady to his daughter, whose name was Aoiffe, whom he promised in England to the earl of Strangwell.  This princess, after the taking of Waterford was sent for by her father, and was married there with great solemnity to that noble earl, upon the conditions formerly stipulated between them... (The General History of Ireland, Keating, 1841)