British Dictionary definitions for parnassus mount
Mount Parnassus, a mountain in central Greece, in NW Boeotia: in ancient times sacred to Dionysus, Apollo, and the Muses, with the Castalian Spring and Delphi on its slopes. Height: 2457 m (8061 ft) Modern Greek names Parnassós (ˌparnaˈsɔs), Liákoura
late 14c., from Latin, from Greek Parnassos, mountain in central Greece, sacred to Apollo and the Muses, thus symbolic of poetry. Room writes that the name is from Hittite parna "abode." Related: Parnassian.