zāʿaf זָעַף ‘to enrage’ (Hebrew)

Etymology^?: a primitive root

zāʿaf v
1) to fret, be sad, be wroth, be vexed, be enraged, be out of humour
 1a) (Qal)
  1a1) to be out of humour
  1a2) to be enraged, be angry
2) (Qal)
 2a) to appear perplexed, appear troubled
 2b) to be sad-looking