The name Hilary is an Old English form of Hilarius or Hilaria.
Famous bearers
Bearers include Hilary Putnam (born 1926), an American male philosopher;
Hilary Swank (born 1974), an American actress;
Hilary Hahn (born 1979), an American violinist;
Hilary Duff (born 1987), an American actress and singer.
