Find the word definition

Wikipedia
Mar-biti-apla-usur

Mār-bīti-apla-uṣur, inscribed DUMU-É-A-PAB on (presumably) contemporary inscriptions on Lorestān bronze arrowheads or A-É-AxA-ŠEŠ in the Dynastic Chronicle and meaning “O Mar-bīti (a deity associated with Dēr with a sanctuary in Borsippa), protect the heir,” reigned 984–979 BC and was the sole king of Babylon’s short-lived 7th or Elamite Dynasty. According to the Synchronistic King List, he was a contemporary of Assyrian king Aššur-reš-iši II.