depreciate
$ \mathrm{depreciate} /dɪˈpriːʃieɪt/
1 intransitive to become less valuable over a period of time New cars start to depreciate as soon as they are on the road.
Shares continued to depreciate on the stock markets today.
2 transitive depreciate something (business) to reduce the value, as stated in the company’s accounts, of a particular asset over a particular period of time The bank depreciates laptops over a period of five years.
3 transitive depreciate something (formal) to make something seem unimportant or of no value I had no intention of depreciating your contribution.
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