Meaning of “depreciate” - Learner’s Dictionary

depreciate

verb [ I ] us uk /dɪˈpriːʃieɪt/

to lose value over a period of time:

New computers depreciate in value very quickly.
depreciation noun [ U ] us uk /dɪˌpriːʃiˈeɪʃən/

(Definition of “depreciate” from the Cambridge Learner’s Dictionary © Cambridge University Press)