PEOR, a famous mountain beyond Jordan, which Eusebius places between Heibon and Livias. The mountains Nebo, Pisgab, and Peor, were near one another, and probably made but the same chain of mountains. It is very likely that Peor took its name from some deity of the same name, which was worshipped there; for Peor, Phegor, or Baal-peor, was known in this country. See Numb. xxv. 3. Deut. iv. 3. Psal. cv. 28.