Root م ر ي(m r y) has 11 unique word forms and appears 20 times in the Quran.

English gloss Argument, Dispute, Doubt, Oppose, Contest

Word Translation Occurrences
مِرۡيَةٖ doubt 10
ٱلۡمُمۡتَرِينَ the doubters, the ones who doubt 8
تَمۡتَرُونَ doubt 4
يَمۡتَرُونَ disputing, they dispute 4
أَفَتُمَٰرُونَهُۥ Then will you dispute with him 2
مِرَآءٗ (with) an argument 2
يُمَارُونَ dispute 2
فَتَمَارَوۡاْ but they disputed 2
تَتَمَارَىٰ will you doubt 2
تُمَارِ argue 2
تَمۡتَرُنَّ (be) doubtful 2