Disapprove

wiktionary

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dis- +‎  approve

etymonline

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disapprove (v.)

late 15c., "disprove, prove to be untrue," a sense now obsolete; as the reverse of approve, "regard with moral condemnation, think wrong or reprehensible," it is attested from 1640s. See dis- + approve. Related: Disapproved; disapproving.