AROER (a-rō'êr, Heb. ‘aro‘ēr, poor, naked, helpless). The same word is translated “bush” in Jer.17.6; Jer.48.6. 1. A town on a branch of the brook Jabbok, fortified early by the tribe of Gad (Num.32.34), having been taken from Sihon, king of the Amorites (cf. Josh.13.25). A camping place of Joab (2Sam.24.5) when taking a census in the days of David. Isaiah speaks of it as being deserted in his time (Isa.17.2).