lethe

Lethe \Le"the\ (l[=e]"th[-e]), n. [L., fr. Gr. lh`qh, prop., forgetfulness; akin to lanqa`nesqai to forget, lanqa`nein to escape notice.] 1. (Class. Myth.) A river of Hades whose waters when drunk caused forgetfulness of the past. [1913 Webster] 2. Oblivion; a draught of oblivion; forgetfulness. [1913 Webster]