devalue

/diːˈvæljuː/
verb
  1. To reduce or lower the value or worth of something.
    • The government decided to devalue the currency to boost exports.
    • The company's bad reputation devalued its stock.
    • Constant criticism can devalue a person's self-esteem.
  2. To cause something to be considered less important or less respected.
    • Using the award as a marketing tool devalues its true meaning.
    • We should not devalue the contributions of volunteers.
    • Some people devalue education by focusing only on grades.