Lemma نَّكَثَ has 4 unique word forms and appears 6 times in the Quran.

Word Translation Occurrences
نَّكَثُوٓاْ they break, who broke 4
يَنكُثُونَ broke (their word), broke (the word) 4
نَّكَثَ breaks (his oath) 2
يَنكُثُ he breaks 2