𒀭𒋾𒊩𒆳

The Akkadian name Tiāmat is cognate with the Hebrew word tehom, meaning 'the deep' or 'the abyss,' and with a broader Semitic root denoting the ocean. In the Enuma Elish, the Babylonian creation epic composed around 1100 BCE, Tiamat and her consort Apsu are the primordial couple: she is salt water, he is fresh water, and their commingling at the beginning of time generates the first gods. The image is meteorological and geographical at once — the meeting of salt sea and fresh river in a delta, which was the defining landscape of southern Mesopotamia. Creation, in this cosmology, begins as a hydraulic event: the mixing of two kinds of water that the Babylonians observed at the mouths of the Tigris and Euphrates.

After Apsu is killed by the god Ea, Tiamat is enraged and prepares for war against the younger gods, assembling an army of monsters including the mushussu dragon, the serpent, the lahmu hero, the storm demon, and the Fish-Man. She appoints her consort Kingu as commander and gives him the Tablet of Destinies — the divine artifact that controls the fates of all things. The younger gods panic; Anu, Ea, and Enlil each attempt to face Tiamat and retreat in fear. Only Marduk agrees to fight her, on the condition that he be granted absolute authority. The gods assemble and, in a remarkable scene, they test Marduk's power by commanding a garment to disappear and reappear: when it obeys, they proclaim him their champion.

The battle between Marduk and Tiamat is described with unusual physical specificity for a mythological text. Marduk drives the wind into her open mouth so she cannot close it, then slays her with a spear. He slices her body in two 'like a dried fish,' sets one half above as the sky, and uses the other to form the earth. Her eyes become the sources of the Tigris and Euphrates rivers. Her tail is bent upward to form the Milky Way. The act is simultaneously violent and generative: the world is made from dismemberment, and the monster's body is the raw material of the cosmos. This cosmogonic pattern — creation from the body of a defeated chaos creature — appears in numerous mythological traditions, from the Norse Ymir to the Vedic Purusha.

In modern usage, Tiamat is best known through fantasy role-playing games, particularly Dungeons and Dragons, where she appears as a five-headed chromatic dragon queen representing evil and chaos. The gaming usage has given the name a second life entirely separate from its ancient context, and millions of people who have never heard of the Enuma Elish have strong associations with the word. This secondary life is not entirely disconnected from the original: Tiamat in the game is a chaos monster whose defeat creates order, a structure that maps directly onto the Babylonian original. The game designers knew their mythology.