ʿāxar עָכַר ‘to trouble’ (Hebrew)

Etymology^?: a primitive root

ʿāxar v
1) to trouble, stir up, disturb, make (someone) taboo
 1a) (Qal) to disturb, trouble
 1b) (Niphal)
  1b1) to be disturbed, be stirred up
  1b2) disturbance, calamity (participle)