HOR, a mountain, or mountainous tract of Arabia Petraea, situated in that circuit which the Israelites took to the south and south-east of Edom in their way to the borders of Moab: on this mountain Aaron died. The inhabitants were called Horites. This tract was also called Seir, either from a native Horite, or from Esau, by way of anticipation from his hairy habit of body; whose posterity drove out the Horites.