The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix II
Semitic Roots
ENTRY:
cqb.
DEFINITION:
West Semitic, to follow, guard, protect. jack, jacket, Jacob, Jacobin, Jacquerie, James, from Hebrew yacqb, (God) has protected, from early Northwest Semitic *yacqub, preterite of *caqaba, to follow, guard.