Hippocrene
Hippocrene , noun
[Latin, from Greek {not transcribed}; "i`ppos horse + {not transcribed} a fountain.]
A fountain on Mount Helicon in Bootia, fabled to have burst forth when the ground was struck by the hoof of Pegasus. Also, its waters, which were supposed to impart poetic inspiration. — Keats
Nor maddening draughts of Hippocrene.