Webster's Revised Unabridged Dictionary (1913 + 1828)
result(s) from the 1913
Duke (?) n. [F. duc, fr. L. dux, ducis, leader, commander, fr. ducere to lead; akin to AS. teón to draw; cf. AS. heretoga (here army) an army leader, general, G. herzog duke. See Tue, and cf. Doge, Duchess, Ducat, Duct, Adduce, Deduct.]
1. A leader; a chief; a prince. [Obs.]
Hannibal, duke of Carthage.
Sir T. Elyot.
All were dukes once, who were duces" -- captains or leaders of their people.
2. In England, one of the highest order of nobility after princes and princesses of the royal blood and the four archbishops of England and Ireland.
3. In some European countries, a sovereign prince, without the title of king.
Duke's coronet. See Illust. of Coronet. -- To dine with Duke Humphrey, to go without dinner. See under Dine.
Duke, v. i. To play the duke. [Poetic]
Lord Angelo dukes it well in his absence.
result(s) from the 1828
DUKE, n. [G., L, to lead; to draw, to tug. Gr.]1. In Great Britain, one of the highest order of nobility; a title of honor or nobility next below the princes; as the Duke of Bedford or of Cornwall.2. In some countries on the Continent, a sovereign prince, without the title of king; as the Duke of Holstein, of Savoy, of Parma, &c.3. A chief; a prince; as the dukes of Edom. Genesis 36.