Leviathan

Levi'athan (Heb. לויָתָן, usually derived from לַויָה, a wreath, with adject. ending ןbut perhaps compounded of לַוי, wreathed, and תִּן, a sea-monster; occurs Job 3:8; Job 41, I [Hebrew xl, 25], Ps 74:14; Ps 104:26; Isa 27:1; Sept. δράκων, but τὸμέγα κῆτος in Job 3:8; Vulg. Leviathan, but draco in Psa.; Auth. Vers. "Leviathan," but '"their mourning" in Job 3:8) probably has different significations, e.g.:

(1.) A serpent, especially a large one (Job 3:8), hence as the symbol of the hostile kingdom of Babylon (Isa 27:1).

(2.) Specially, the crocodile (Job 41:1).