Yaw is not just the angle about the vertical axis on airplanes. It is also an ancient Leventine god, and a possible precursor to the Hebrew god Yahweh. Yaw (aslo pronounce Yah, or Yam) was an elohim, one of the 70 sons of the high god El. He was a sea god, and a god of the primordial chaos.
The meaning of the epithet “Yamm” is sea. He is regarded in the Baal myth as one of Baal’s major adversaries. He is referred to several times in the OT (explicitly or implicitly) where it is claimed that the Lord has dominion over him. He is accompanied in the texts by two sea monsters, namely, Litar (Leviathan) and Tunnan (Tannin in the Bible) and he himself rules the sea.