the oak or heap of Assyria, a territory in Asia of which Arioch was king ( Genesis 14:1 Genesis 14:9 ). It is supposed that the old Chaldean town of Larsa was the metropolis of this kingdom, situated nearly half-way between Ur (now Mugheir) and Erech, on the left bank of the Euphrates. This town is represented by the mounds of Senkereh, a little to the east of Erech.

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.