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 (אלוף [Strong's H441]), alluph, from אלף, to lead, guide; and is here applied to heads of families, chieftains, or princes, who were military leaders. Gen 36:18; 1Ch 1:35
Eliphaz: Job 21:8; Psa 37:35
duke Teman: Gen 36:4, Gen 36:11-12; 1Ch 1:36, 1Ch 1:45, 1Ch 1:51-54; Job 2:11, Job 4:1; Jer 49:7, Jer 49:20; Eze 25:13; Amo 1:12; Oba 1:9; Hab 3:3