depreciate


depreciate (http://definr.com/depreciate)

     v 1: belittle; "The teacher should not deprecate his student's
          efforts" [syn: deprecate]
     2: lower the value of something; "The Fed depreciated the
        dollar once again" [ant: appreciate]
     3: lose in value; "The dollar depreciated again" [syn: undervalue,
         devaluate, devalue] [ant: appreciate]