Root ن ك ل(n k l) has 4 unique word forms and appears 5 times in the Quran.

English gloss Shrink, Withdraw, Punish, Torture, Fetter, Chain, Warning, Repel, Drive back

Word Translation Occurrences
نَكَٰلٗا a deterrent punishment, (as) an exemplary (punishment), a deterrent punishment, (as) an exemplary (punishment) 4
أَنكَالٗا (are) shackles, (are) shackles 2
تَنكِيلٗا (in) punishment, (in) punishment 2
نَكَالَ (with) an exemplary punishment, (with) an exemplary punishment 2