confirm
definition
to show that something is true based on evidence
example
The results of the study confirm that children below 3 who are exposed to screens often have twice as much risk of developing autism than children exposed to screens moderately.
synonyms
validateproveverify
word origin — Middle English: from Old French confermer, from Latin confirmare, from con- ‘together’ + firmare ‘strengthen’ (from firmus ‘firm’)