Definition of: depreciate

(di·prē′shē·āt) v. ·at·ed, ·at·ing v.t.
1. To lessen the worth of; lower the price or rate of.
2. To disparage; belittle.
—v.i.
3. To become less in value, etc. See synonyms under ASPERSE, DISPARAGE. [<L depretiatus, pp. of depretiare <de- down + pretium price]
—de·pre′ci·a′tor noun