Hilary (name)
（重定向自Hilarus）
Hilary, Hillary or Hilleary is a given and family name, derived from the Latin hilarius meaning "cheerful", from hilaris, "cheerful, merry" which comes from the Greek ἱλαρός (hilaros), "cheerful, merry", which in turn comes from ἵλαος (hilaos), "propitious, gracious". Ilaria is the popular Italian and Spanish feminine form, while Ilario is the Italian masculine one. Ilariana and Ylariana (/aɪˌlɑːriˈɑːnə/ eye-LAH--ree-AH-nə) are two very rare feminine variants of the name. Another male form is Hilarion.