1) Akkadian father of the gods 2) Akkadian god 3) Babylonian chaos 4) Semitic deity 
(from the article `Lahmu and Lahamu`) in Mesopotamian mythology, twin deities, the first gods to be born from the chaos that was created by the merging of Apsu (the watery deep beneath ... The Babylonian creation epic (Enuma elish, `When on High`) states that at first there existed only the male (Apsu) and female (Tiamat) gods...
In the mythology and religion of Mesopotamia, primordial sweet-water god, associated with Tiamat. ...
In Babylonian and Sumerian mythology, Apsu is the sweet-water ocean. It is the union of Apsu with Tiamat which brings forth the first gods.
[n] - (Akkadian) father of the gods and consort of Tiamat
noun father of the gods and consort of Tiamat
an Akkadian god: the consort of Tiamat and the father of the gods.