Easton's Bible Dictionary (1897)
Pleasantness, one of the three sons of Caleb, the son of Jephunneh (1 Chr. 4:15).
Smith's Bible Dictionary (1863)
(pleasantness), one of the sons of Caleb the son of Jephunneh.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
NA'AM (pleasantness), a son of Caleb. 1 Chr 4:15.
Hitchcock's Bible Names (1869)
fair; pleasant