Λέρνα · Lerna — LSJ
Lerna, a marsh in Argolis, the mythol. abode of the Hydra, Plu. Cleom. 15, Paus. 2.4.5; also Λέρνη, Cratin. 347, Str. 8.6.8, etc.: gen. Λέρνης A. Pr. 652, etc.: prov., Λέρνη κακῶν an abyss of ills, Hsch.; so Λ. θεατῶν, of the theatre, Cratin. l.c.:—Adj. Λερναῖος, α, ον, Hes. Th. 314, etc.; also ος, ον E. Ion 191 (lyr.):—Λερναία χολή, of malignant anger, Trag.Adesp. 229.