Medieval English form of HILARIUS or HILARIA. During the Middle Ages it was primarily a masculine name. It was revived in Britain at the beginning of the 20th century as a predominantly feminine name. In America, this name and the variant Hillary seemed to drop in popularity after Hillary Clinton (1947-) became the first lady.

Cheers characters, currently out of the US top 1000, Frasier characters, history, male to female, Orthodox saints, Y vowels