vex Look up vex at Dictionary.com
c.1415, from M.Fr. vexer, from L. vexare "to attack, harass, trouble," from vexus, collateral form of vectus, pp. of vehere "to draw, carry" (see vehicle). Vexation is attested from c.1400, from L. vexationem (nom. vexatio) "agitation," from vexus.