Professor Paul Haupt may be termed the father of Sumerian etymology, as he was really the first to place this study on a scientific basis in his Sumerian Family Laws and Akkadian and Sumerian Cuneiform Texts.
Thus Delitzsch formerly derived the name from an Akkadian god, I or Ia; or from the Semitic nominative ending, Yau; 7 but this deity has since disappeared from the pantheon of Assyriologists.
He was one of the evil demons of the seven planets, the Maskim of the ancient Akkadian religion, a conception transmitted through the Chaldeans, the Babylonians and the Jewish Kabbala to medieval and modern astrologers and magicians.
To this Akkadian occupation succeeded an occupation by the first Semitic dynasty of Ur, and the constructions of Ur-Gur or Ur-Engur, the great builder of Babylonian temples, are superimposed immediately upon the constructions of Naram-Sin.
A cylinder seal from the Akkadian Period shows the Mesopotamian sun-God Shamash as dispenser of divine justice.