(from the Latin dux, a leader) stands in our version for two Hebrews terms: אִלּוּ (see a dissertation on this word by Sprenger, in the Zeitschr. f. deutsch. nmorgen. Gesellschvft, XII, 2:316), alluph', a leader, which, besides its ordinary sense of guide or friend, is used technically of the phylarch, or head of a tribe or nation, especially of the Edomitish chieftains (Genesis 36:15-43; Exodus 15:15; 1 Chronicles 1:51-54), rarely of the Jews ("governor," Zechariah 9:7; Zechariah 12:5-6), and once of chiefs in general ("captain," Jeremiah 13:21); also נָסַיךְ, nasik', one anointed (usually in poetry), spoken of the magnates of Sihon, perhaps by a paraphrase for that king himself (Joshua 13:21), elsewhere of other "princes" (Psalms 83:11; Ezekiel 32:30; Daniel 11:8; "principal men," Micah 5:5).