PARNASSUS, (Strabo, Pindar, Virgil), a mountain of Phocis, near Delphi, and the mountains Cithæron and Helicon, with two tops, (Ovid, Lucan); the one called Cirrhæ, sacred to Apollo; and the other, Nisa, sacred to Bacchus, (Juvencal). It was covered with bay trees, (Virgil); and originally called Larnassus, from Deucalion's larnax or ark, thither conveyed by the flood, (Stephanus, Scholiast on Apollonius); after the flood, Parnassus; from Har Nahas, changing the h into p, the hill of divination or augury, Peucerus; the oracle of Delphi standing at its foot.