(ف) نَسَخَ يَنْسَخُ نَسْخًاnasakha yansakhu naskhan: this root has two aspects: (1) to efface something and bring another in its place, to abrogate a ruling (2) to copy a text exactly. ﴿مَا نَنْسَخْ مِنْ اٰيَةٍ اَوْ نُنْسِهَا﴾ (Al-Baqarah 2:106); ﴿فَيَنْسَخُ اللّٰهُ مَا يُلْقِي الشَّيْطٰنُ﴾ (Al-Ḥajj 22:52)
نُسْخَةٌnuskhah (noun, ism dhāt): a written text, a copy. ﴿وَفِيْ نُسْخَتِهَا هُدًي وَّرَحْمَةٌ﴾ (Al-Aʿrāf 7:154)
نَاسِخٌnāsikh (active participle, ism fāʿil): one who abrogates; مَنْسُوْخٌmansūkh (passive participle, ism mafʿūl): that whose ruling has been lifted. (This word is not used in the Quran.)
Form X (istifʿāl) اِسْتَنْسَخَ يَسْتَنْسِخُ اِسْتِنْسَاخًاistansakha yastansikhu istinsākhan: to have something copied with care, to have it written down. Only once in the Quran: ﴿اِنَّا كُنَّا نَسْتَنْسِخُ مَا كُنْتُمْ تَعْمَلُوْنَ﴾ (Al-Jāthiyah 45:29)