Parnassus /(?)/

Par·nas·sus

Parnassus

n.
  1. A mountain in Greece, sacred to Apollo and the Muses, and famous for a temple of Apollo and for the Castalian spring. (Anc. Geog. & Gr. Myth.)

Phrases & Compounds
Grass of Parnassus
See under Grass, and Parnassia.
To climb Parnassus
to write poetry.