JEBUS (jē'bŭs, Heb. yevûs). The name by which Jerusalem was known while occupied by the Jebusites (Josh.15.63; Judg.19.10; 1Chr.11.4). Small in area compared with the size of Jerusalem in Solomon’s time, Jebus was taken from the Jebusites by David and made the capital of Israel (2Sam.5.1-2Sam.5.9). Its citadel was the stronghold of Zion (1Chr.11.5).
In Jud 19:10,11, "Jebus (the same is Jerusalem)"; 1Ch 11:4,5, "Jerusalem (the same is Jebus)." It was once thought that this was the first name of Jerusalem, as indeed might be suggested by the Biblical references, but it is now known from the Tell el-Amarna Letters that Urusa-lem was a name used centuries before the time of David (see JERUSALEM, I). It would appear probable that the name "Jebus" was evolved by the Hebrews as an alternate name, and possibly they may have imagined an earlier name, for Jerusalem from JEBUSITE (which see), the name of the local tribe who owned the district in the first centuries of Israel’s occupation of Canaan.
Trodden hard, or fastness, or “the waterless hill”, the name of the Canaanitish city which stood on Mount Zion (Josh. 15:8; 18:16, 28). It is identified with Jerusalem (q.v.) in Judg. 19:10, and with the castle or city of David (1 Chr. 11:4,5). It was a place of great natural strength, and its capture was one of David’s most brilliant achievements (2 Sam. 5:8).
(threshing-floor), one of the names of Jerusalem, the city of the Jebusites, are called Jebusi. (Joshua 15:8; 18:16,28; Judges 19:10,11; 1 Chronicles 11:4,5) Jerusalem