Root ن ص ح(n S H) has 10 unique word forms and appears 13 times in the Quran.

English gloss Advise, Council, Good will, Sincere, Faithful

Word Translation Occurrences
ٱلنَّٰصِحِينَ the advisers, the sincere advisors 6
وَنَصَحۡتُ and advised, and [I] advised 4
نَاصِحٌ an adviser 2
نَصَحُواْ they (are) sincere 2
أَنصَحَ [I] advise 2
نُصۡحِيٓ my advice 2
نَّصُوحًا sincere 2
وَأَنصَحُ and [I] advise 2
نَٰصِحُونَ (will be) sincere 2
لَنَٰصِحُونَ surely well-wishers 2