Easton's Bible Dictionary (1897)
Ruins. ) A town on the north bank of the Arnon (Deut. 4:48; Judg. 11:26; 2 Kings 10:33), the southern boundary of the kingdom of Sihon (Josh. 12:2). It is now called Arair, 13 miles west of the Dead Sea. ) One of the towns built by the tribe of Gad (Num. 32:34) “before Rabbah” (Josh. 13:25), the Ammonite capital. It was famous in the history of Jephthah (Judg. 11:33) and of David (2 Sam. 24:5). (Comp. ) A city in the south of Judah, 12 miles south-east of Beersheba, to which David sent presents after recovering the spoil from the Amalekites at Ziklag (1 Sam. 30:26, 28).
It was the native city of two of David’s warriors (1 Chr. 11:44). It is now called Ar’arah.
Smith's Bible Dictionary (1863)
(ruins).
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
AR'OER (ruins), the name of several places. A city on the north side of the river Arnon, given to Reuben. Josh 13:9, Ex 17:16. It belonged to Sihon of the Amorites, Deut 2:36; Deut 3:12; Deut 4:48; Josh 12:2; Jud 11:26; taken by Syria, 2 Kgs 10:33; possessed by Moab, Jer 48:19. It is identified with ruins on the edge of a steep cliff, 13 miles west of the Dead Sea, and called Ara'ir. A city before Rabbah, built by Gad, Num 32:34; Josh 13:25; it was probably not far west of the modern town of Amman. Aroer, in Isa 17:2, if a proper name, must refer to a region near Damascus.
A town in the south of Judah, 1 Sam 30:28 ; now Ar'arah, on the road from Gaza to Petra, and 11 miles south-west of Beer-sheba. Four wells are found there.
Hitchcock's Bible Names (1869)
heath; tamarisk