Smith's Bible Dictionary (1863)
(darkness), one of the “dukes” of Edom,—that is, head or founder of a tribe of that nation.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
PI'NON (darkness), one of the dukes of Edom. Gen 36:41; 1 Chr 1:52. His tribe was settled, according to later traditions, at Punon, one of the stations of the Israelites in the wilderness.
Hitchcock's Bible Names (1869)
pearl; gem; that beholds