ancient West Semitic deity who ruled the oceans, rivers, lakes, and underground springs. He also played an important role in the Baal myths recorded on tablets uncovered at Ugarit, which say that at the beginning of time Yamm was awarded the divine kingship by El, the chief god of the pantheon. One day, Yamm's messengers requested that the gods surrender Baal to be a bond servant to Yamm. El finally agreed, but Baal refused to go and instead engaged Yamm in battle. After a furious fight, in which the craftsman Kothar supplied Baal with two special weapons, Yamm was finally slain and the kingship given to Baal. According to some scholars, Yamm was the same deity as Lotan (Hebrew: Leviathan), who was represented as a hydralike dragon or serpent.