(ن) نَسَبَ يَنْسُبُ نَسْبًاnasaba yansubu nasban: to state someone's lineage, to attribute to someone. (This verb is not used in the Quran.)
نَسَبٌnasab pl. اَنْسَابٌansāb (noun, ism dhāt): family relationship, kinship by birth; for this reason in the Quran it is paired with «صِهْرṣihr» (kinship by marriage). Three times in the Quran: ﴿فَجَعَلَهُۥ نَسَبًا وَّصِهْرًا﴾ (Al-Furqān 25:54); ﴿فَلَآ اَنْسَابَ بَيْنَهُمْ يَوْمَئِذٍ﴾ (Al-Muʾminūn 23:101); ﴿وَجَعَلُوْا بَيْنَهُۥ وَبَيْنَ الْجِنَّةِ نَسَبًا﴾ (Aṣ-Ṣāffāt 37:158)
Form III (mufāʿalah) نَاسَبَ يُنَاسِبُ مُنَاسَبَةًnāsaba yunāsibu munāsabatan: to suit something; to be in accord with it and appropriate (this verb is not used in the Quran).
Form VI (tafāʿul) تَنَاسَبَ يَتَنَاسَبُ تَنَاسُبًاtanāsaba yatanāsabu tanāsuban: (of things) to harmonise with one another; to be in proper proportion to each other (this verb is not used in the Quran).