Meaning
The most generally-accepted theory at the present time is that Ur is to be identified with the modern Mugheir (or Mughayyar, "the pitchy") in Southern Babylonia, called Urumma, or Urima, and later Uru in the inscriptions. This borders on the district which in the 1st millennium BC was called Chaldea (Kaldu).
This, some hold, accords with the view of Eupolemus, because Camarina may be from the Arabic name of the moon qamar, which refers perhaps to the fact that the ancient city was dedicated to the worship of the moon-god. Another argument which has been advanced for this identification is that Haran, the city to which Terah migrated, was also a center of moon-god worship. This, however, is precarious, because Urumma or Urima in Abraham's day was a Sumerian center, and the seat of Nannar-worship, whereas Haran was Semitic, and was dedicated to Sin. Although these two deities in later centuries were identified with each other, still the argument seems to have little weight, as other deities were also prominently worshipped in those cities, particularly Haran, which fact reminds us also that the Talmud says Terah worshipped no less than 12 deities.
It should be stated that there are scholars who hold, with the Septuagint, that Ur means, not a city, but perhaps a land in which the patriarch pastured his flocks, as for instance, the land of Uri or Ura (Akkad). The designation "of the Chaldeans" was in this case intended to distinguish it from the land where they were not found.
Still another identification is the town Uru (Mar-tu) near Sippar, a place of prominence in the time of Abraham, but which was lost sight of in subsequent periods (compare Amurru, 167). This fact would account for the failure to identify the place in the late pre-Christian centuries, when Urima or Uru still flourished. Western Semites-for the name Abram is not Babylonian-lived in this city in large numbers in the age when the patriarch lived. The Babylonian contract literature from this, as well as other sites, is full of names from the western Semitic lands, Aram and Amurru. This fact makes it reasonable that the site should be found in Babylonia; but, as stated, although the arguments are by no means weighty, more scholars at the present favor Mugheir than any other site.
A. T. Clay