The Italian term "rimpicciolire, diminuire" matches the English term "diminish"

other italian words that include "rimpicciolire" : english :
rimpicciolire lessen
diminuire, ridurre, rimpicciolire, degradare reduce
other italian words that include "diminuire" : english :
rilassare, diminuire abate
diminuire, ridurre, rimpicciolire, degradare reduce