What is "diniktum"

Diniktum, inscribed Di-ni-ik-tum, was a middle bronze-age town located somewhere in the lower Diyala region of Mesopotamia, on the Tigris river downstream from Upi and close to the northern border of Elam. It is possibly at or in the vicinity of Tell Muḥammad, which lies in south-eastern part of modern Baghdad. It is mentioned in the Harmal geographical list.