māqaq מָקַק ‘to rot’ (Hebrew)

Etymology^?: a primitive root

māqaq v
1) to decay, pine away, rot, fester
 1a) (Niphal)
  1a1) to fester (of wounds)
  1a2) to rot, rot away
  1a3) to moulder away
  1a4) to pine away
 1b) (Hiphil) to cause to rot