to decrease is a form of:

Decrease



noun
1.
~ (in something) (act or process of decreasing, gradual reduction, amount by which a thing is lessened) ការចុះថយ
verb
1.
(បច្ចេកទេស) ការធ្លាក់ចុះ, កាត់បន្ថយ
2.
(TRANSITIVE) (make less, cause to diminish) បន្ថយ
3.
(INTRANSITIVE) (lessen, wane, decline) ចុះថយ, ចុះអន់ថយ