(ض) نَصَبَ يَنْصِبُ نَصْبًاnaṣaba yanṣibu naṣban: to set something up, to plant it firmly, to fix it. ﴿وَاِلَي الْجِبَالِ كَيْفَ نُصِبَتْ﴾ (Al-Ghāshiyah 88:19)
(س) نَصِبَ يَنْصَبُ نَصَبًاnaṣiba yanṣabu naṣaban: to be tired; to toil and labour. ﴿فَاِذَا فَرَغْتَ فَانْصَبْ﴾ (Ash-Sharḥ 94:7)
نَصَبٌnaṣab (verbal noun, maṣdar, also a noun, ism dhāt): toil, fatigue. ﴿لَا يَمَسُّنَا فِيْهَا نَصَبٌ﴾ (Fāṭir 35:35); ﴿لَقَدْ لَقِيْنَا مِنْ سَفَرِنَا هٰذَا نَصَبًا﴾ (Al-Kahf 18:62)
نُصْبٌnuṣb (noun, ism dhāt): affliction, hardship. ﴿اَنِّيْ مَسَّنِيَ الشَّيْطٰنُ بِنُصْبٍ وَّعَذَابٍ﴾ (Ṣād 38:41)
نَاصِبٌnāṣib, feminine نَاصِبَةٌnāṣibah (active participle, ism fāʿil): one who toils and becomes weary. ﴿عَامِلَةٌ نَّاصِبَةٌ﴾ (Al-Ghāshiyah 88:3)
نَصِيْبٌnaṣīb (on the pattern of فَعِيْلٌfaʿīl, in the sense of a passive participle): an appointed share. ﴿لِلرِّجَالِ نَصِيْبٌ مِّمَّا تَرَكَ الْوَالِدٰنِ وَالْاَقْرَبُوْنَ﴾ (An-Nisāʾ 4:7)
نُصُبٌnuṣub pl. اَنْصَابٌanṣāb (noun, ism dhāt): stones set up for offering sacrifices, altars, idols. ﴿وَمَا ذُبِحَ عَلَي النُّصُبِ﴾ (Al-Māʾidah 5:3); ﴿اِنَّمَا الْخَمْرُ وَالْمَيْسِرُ وَالْاَنْصَابُ وَالْاَزْلَامُ رِجْسٌ﴾ (Al-Māʾidah 5:90)
Form II (tafʿīl) نَصَّبَ يُنَصِّبُ تَنْصِيْبًاnaṣṣaba yunaṣṣibu tanṣīban: to set something upright; to erect; to appoint someone to an office (this verb is not used in the Quran).