overvalue
1. [ verb ] assign too high a value to
Synonyms: overestimate
Examples:

"You are overestimating the value of your old car"

Related terms: undervalue undervalue value overestimate overvaluation
Similar spelling:   overpraise
  overvaliant
  overview
  overplus
  overfatigue
  overprice
  overpayment
  overpay
  Overbay