ada4dA. Sutherland - - In Mesopotamian (Babylonian-Akkadian) beliefs, Adad was a god of atmospheric phenomena.He mastered and controlled rainsADAD. ADAD is the Old Akkadian and Assyro-Babylonian name of the ancient Middle Eastern storm god, called Adda (Addu) or Hadda (Haddu) in northwest Semitic areas and known later