to cause irritation, annoyance, or distress to
to bring distress, discomfort, or agitation to (somebody)
to harass or annoy (somebody) by petty provocations
to puzzle or baffle (somebody)
vexed adj
vexedly /ʹveksidli/ adv
vexer noun
vexingly adv
[Middle English vexen via French from Latin vexare to agitate, trouble]