to lower the price or estimated value of (something)
to lessen in value; to fall
to belittle or disparage (somebody or something)
My efforts were depreciated and I was made to feel useless
to lessen in value; to fall
depreciation noun
depreciative /-shətiv/ adj
depreciatory /-shi·ət(ə)ri, -si·ət(ə)ri/ adj
[late Latin depretiatus, past part. of depretiare, from Latin de- + pretium price]