Easton's 1897 Bible Dictionary:

Chedorlaomer
   (= Khudur-Lagamar of the inscriptions), king of Elam. Many
   centuries before the age of Abraham, Canaan and even the
   Sinaitic peninsula had been conquered by Babylonian kings, and
   in the time of Abraham himself Babylonia was ruled by a dynasty
   which claimed sovereignity over Syria and Palestine. The kings
   of the dynasty bore names which were not Babylonian, but at once
   South Arabic and Hebrew. The most famous king of the dynasty was
   Khammu-rabi, who united Babylonia under one rule, and made
   Babylon its capital. When he ascended the throne, the country
   was under the suzerainty of the Elamites, and was divided into
   two kingdoms, that of Babylon (the Biblical Shinar) and that of
   Larsa (the Biblical Ellasar). The king of Larsa was Eri-Aku
   ("the servant of the moon-god"), the son of an Elamite prince,
   Kudur-Mabug, who is entitled "the father of the land of the
   Amorites." A recently discovered tablet enumerates among the
   enemies of Khammu-rabi, Kudur-Lagamar ("the servant of the
   goddess Lagamar") or Chedorlaomer, Eri-Aku or Arioch, and
   Tudkhula or Tidal. Khammu-rabi, whose name is also read
   Ammi-rapaltu or Amraphel by some scholars, succeeded in
   overcoming Eri-Aku and driving the Elamites out of Babylonia.
   Assur-bani-pal, the last of the Assyrian conquerors, mentions in
   two inscriptions that he took Susa 1635 years after
   Kedor-nakhunta, king of Elam, had conquered Babylonia. It was in
   the year B.C. 660 that Assur-bani-pal took Susa.


Hitchcock's Bible Names Dictionary (late 1800's):

Chedorlaomer, roundness of a sheaf