diminished is a form of:

Diminish



verb
1.
(INTRANSITIVE) (to make or become smaller or less, to weaken) ថយតិចចុះ
Example: Rain diminishes the danger of forest fires.
2.
(បច្ចេកទេស) បន្ថយ អន់ថយធ្វើអោយអាម៉ាសមុខ
1.
abate, assuage, curtail, decline, decrease, dwindle, lesson, lower, moderate, reduce, shorten, , suppress, wane