Easton's Bible Dictionary (1897)
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). ) 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).
Smith's Bible Dictionary (1863)
(threshing-floor), one of the names of Jerusalem, the city of the Jebusites, are called Jebusi.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
JE'BUS (place trodden down, threshing- floor), the ancient name of Jerusalem among the Canaanites, Jud 19:10-11; 1 Chr 11:4-5; probably derived from a descendant of Canaan, the son of Ham. Gen 10:16. The Jebusites were partially subdued by Joshua, Josh 10:23, Josh 10:40; Neh 12:10; Josh 15:63; Num 13:29; and they were permitted to remain after the conquest of Jebus by David. 2 Sam 5:6-9; 2 Sam 24:16-25; 1 Chr 11:48; Ezr 9:1-2. "Jebusi" is sometimes put for the city Jebus. Josh 18:16, Josh 18:28; Zech 9:7.
" Being surrounded on all sides by deep ravines, it was a place of great natural strength. See Jerusalem.
Hitchcock's Bible Names (1869)
treading under foot; manger