Easton's Bible Dictionary (1897)
Ambush, a city in the mountains of Judah (Josh. 15:52), now Er-Rabiyeh.
Smith's Bible Dictionary (1863)
(ambush) a city of Judah in the mountainous district, probably in the neighborhood of Hebron; mentioned only in (Joshua 15:62)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
A'RAB (ambush), a town in the mountains of Judah, Josh 15:52; perhaps the home of the Arbite. [scripture]2 Sam. 23 35[scripture]. East of Hebron, at er-Rabiyeh, is an ancient site marked by walls, cisterns, and ruins, which Conder regards as the Arab of biblical history.
Hitchcock's Bible Names (1869)
multiplying; sowing sedition; a window; a locust