Kitto's Popular Cyclopedia of Biblial Literature
Ed´rei, one of the metropolitan towns (Ashtaroth being the other) of the kingdom of Bashan, beyond the Jordan. It was here that Og, the gigantic king of Bashan, was defeated by the Israelites, and lost his kingdom (;; ). Edrei afterwards belonged to eastern Manasseh (). It was the seat of a bishop in the early ages of Christianity. The place now bears the name of Draa, and has been visited in the present century by most of the travelers who have explored the country beyond the Jordan. It is situated in a deep valley, two hours south-east from Mezareib; and the ruins cover an extent of about two miles in circumference, the principal being an immense rectangular building, with a double covered colonnade all around, and a cistern in the middle. This seems to have been originally a Christian church, and afterwards a mosque. Near the town, in the hollow of the mountains, is a large reservoir cased with stone, near which are the ruins of a large building, with a cupola of light materials.
Kitto, John, ed. Entry for 'Edrei'. "Kitto's Popular Cyclopedia of Biblial Literature". https://www.studylight.org/encyclopedias/eng/kbe/e/edrei.html.