Easton's Bible Dictionary (1897)
Fertile; light soil, a city somewhere “in the wilderness” of Judah (Josh. 15:62), probably near Engedi.
Smith's Bible Dictionary (1863)
(soft soil) one of the six cities of Judah, (Joshua 15:62) which were in the district of the Midbar (Authorized Version “wilderness”).
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
NIB'SHAN (light, soft soil), one of the six cities in the "Midbar," or wilderness of Judah. Josh 15:62. It was apparently near En-gedi, on the western shore of the Dead Sea. Its site is unknown.
Hitchcock's Bible Names (1869)
prophecy; growing of a tooth