ن ب زn-b-z
(ض) نَبَزَ يَنْبِزُ نَبْزًاnabaza yanbizu nabzan: to shame someone by giving him a bad nickname. (This verb is not used in the Quran.)
Form VI (tafāʿul) تَنَابَزَ يَتَنَابَزُ تَنَابُزًاtanābaza yatanābazu tanābuzan: to call one another by offensive nicknames. Only once in the Quran: ﴿وَلَا تَنَابَزُوْا بِالْاَلْقَابِ﴾ (Al-Ḥujurāt 49:11)