Webster's Revised Unabridged Dictionary · 1913

Nympholepsy

Nympholepsy (nim"fo*lep`sy) , noun

[Greek ny`mfh a nymph + lamba`nein to seize.]

A species of demoniac enthusiasm or possession coming upon one who had accidentally looked upon a nymph; ecstasy. [Rare] — De Quincey
The nympholepsy of some fond despair. — Byron