Fausset's Bible Dictionary
1. One of Bashank, two capitals (Numbers 21:33; Deuteronomy 1:4; Deuteronomy 3:10; Joshua 12:4). Mentioned only in connection with the victory over Og, and the acquisition of the Amorite territory. Allotted to Manasseh (Numbers 33:33). Its rains, Edra, stand in black masses, stone roofed and doored houses, of massive walls, on a projection of the S.W. angle of the Lejah or Argob. The site is without water, without access except through rocky defiles, strong and secure, one mile and a half wide by two and a half long, about 25 ft. above the fertile plain. It seems to have been the stronghold of the Geshurites subsequently.
2. A town of Naphtali, near Kedesh (Joshua 19:37). Now Aitherun (Conder).
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Fausset, Andrew R. Entry for 'Edrei'. Fausset's Bible Dictionary. https://www.studylight.org/dictionaries/eng/fbd/e/edrei.html. 1949.