Friedrich Delitzsch derived the name "Chaldaean" = Kasdim from the non-Semitic Kassites who held the supremacy over practically all Babylonia during an extended period (c. 1783-1200 B.C.).
If, on the fall of the Kassites, Nebuchadrezzar I.
They were overthrown and Babylonia was conquered by Kassites or Kossaeans from the mountains of Elam, with whom Samsu-iluna had already come into conflict in his 9th year.
Of the Kings' List; that in the reign of Samsu-ditana, the last king of Dynasty I., Hittites from Cappadocia raided and captured Babylon, which in her weakened state soon fell a prey to the Kassites (Dynasty III.); and that later on southern Babylonia, till then held by Dynasty II.
Of the Kings' List, was in its turn captured by the Kassites, who from that time onward occupied the whole of the Babylonian plain.