קָצַף

From LSJ

ἀνήρ τῷ ἀδελφῷ αὐτοῦ προσκολληθήσεται → a man cleaves each to his fellow, each to one's fellow

Source

English (Strong)

a primitive root; to crack off, i.e. (figuratively) burst out in rage: (be) anger(-ry), displease, fret self, (provoke to) wrath (come), be wroth.