Root م ك ث(m k v) has 6 unique word forms and appears 7 times in the Quran.

English gloss Remain, Dwell, Stay

Word Translation Occurrences
ٱمۡكُثُوٓاْ Stay here 4
فَمَكَثَ So he stayed 2
فَيَمۡكُثُ remains 2
مُكۡثٖ intervals 2
مَّٰكِثُونَ (will) remain 2
مَّٰكِثِينَ (They will) abide 2