Root خ ت م(x t m) has 7 unique word forms and appears 8 times in the Quran.

English gloss Stamp, Seal, Close, Finish

Word Translation Occurrences
وَخَتَمَ and He sets a seal, and sealed 4
خِتَٰمُهُۥ Its seal 2
مَّخۡتُومٍ sealed 2
خَتَمَ Has set a seal 2
وَخَاتَمَ and Seal 2
يَخۡتِمۡ He would seal 2
نَخۡتِمُ We will seal 2