From H3867; a wreathed {animal} that {is} a serpent (especially the crocodile or some other large sea monster); figuratively the constellation of the dragon; also as a symbol of Babylon: - {leviathan} mourning.
Isa 27:1In that day the LORD with his sore and great and strong sword shall punish leviathanH3882 the piercing serpent, even leviathanH3882 that crooked serpent; and he shall slay the dragon that is in the sea. ▼