Brown-Driver-Briggs' Hebrew DefinitionsBDB4501 מבצר Mibzar = "fortress" 1. one of the chiefs of Edom Origin: the same as H4013 TWOT: None Parts of Speech: Proper Name Masculine
מבצרה מבצר mibtsâr mibtsârâh mib-tsawr', mib-tsaw-raw' From H1219; a fortification, castle, or fortified city; figuratively a defenderKJV Usage: (de-, most) fenced, fortress, (most) strong (hold).