Third person singular present of convince; persuades someone to believe or do something through reasoning or argument. Causes someone to be certain of the truth or validity of something.
From Latin 'convincere' meaning 'to overcome decisively, prove' combining 'con-' (thoroughly) and 'vincere' (to conquer). The word entered English in the 16th century, initially meaning to overcome or defeat in argument, gradually softening to mean persuade or prove.
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