First aristocracy of dukes, from am cir, 2429, to am cir, 2471; from bc cir. 1575, to bc cir. 1533.
dukes: The word duke is from the Latin dux:, a captain or leader, from duco:, to lead, guide; which is the exact import of the Hebrew (ΰμεσ: strong:H441), alluph:, from ΰμσ:, to lead, guide; and is here applied to heads of families, chieftains, or princes, who were military leaders. Genesis 36:18; 1 Chronicles 1:35
Eliphaz: Job 21:8; Psalms 37:35