vex
Cross references:
1. annoy
vex \'veks\ vt or vexed also vext; also vex.ing [ME vexen, fr. MF vexer,
fr. L vexare to agitate, trouble, ve]x 1a: to bring trouble, distress, or
agitation to 1b: to bring physical distress to 1c: to irritate or annoy
by petty provocations : HARASS 1d: PUZZLE, BAFFLE 2: to debate or discuss
at length {a vexed question} 3: to shake or toss about
Webster's English Dictionary