קָצַף qâtsaph (H7107)

to crack off, i.e. (figuratively) burst out in rage

1) to be displeased, be angry, fret oneself, be wroth 1a) (Qal) to be wroth, to be full of wrath, to be furious 1b) (Hiphil) to provoke to wrath or anger 1c) (Hithpael) to put oneself in a rage, anger oneself

a primitive root;