Easton's Bible Dictionary (1897)
Heel-catcher, a form of the name Jacob, one of the descendants of Simeon (1 Chr. 4:36).
Smith's Bible Dictionary (1863)
(supplanter), one of the princes of the families of Simeon.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
JAAK'OBAH (heel catcher, supplanter), a chieftain of Simeon. 1 Chr 4:36.
Hitchcock's Bible Names (1869)
supplanter; deceiver; the heel