de ‧ pre ‧ ci ‧ ate /dɪˈpriːʃieɪt/ BrE AmE verb
[ Date: 1400-1500 ; Language: Late Latin ; Origin: depretiare , from Latin pretium 'price' ]
1 . [intransitive] to decrease in value or price OPP appreciate :
New cars depreciate in value quickly.
2 . [transitive] technical to reduce the value of something over time, especially for tax purposes:
Company computers are depreciated at 50% per year.
3 . [transitive] formal to make something seem unimportant:
those who depreciate the importance of art in education