Marduk

Probably from Sumerian amar-Utuk meaning "calf of Utu", derived from amar "calf" combined with the name of the sun god Utu. This was the name of the chief Babylonian god, presiding over heaven, light, sky, battle, and fertility. After killing the dragon Tiamat, who was an old enemy of the gods, he created the world and sky from the pieces of her body.