Root ث و ر(v w r) has 4 unique word forms and appears 5 times in the Quran.

Word Translation Occurrences
فَتُثِيرُ so that they raise, so they raise, so that they raise, so they raise 4
تُثِيرُ to plough, to plough 2
فَأَثَرۡنَ Then raise, Then raise 2
وَأَثَارُواْ and they dug, and they dug 2