certify


Concise Oxford English Dictionary © 2008 Oxford University Press:
certify/ˈsɜːtɪfʌɪ/
verb (certifies, certifying, certified) formally attest or confirm.

chiefly Brit. officially recognize as possessing certain qualifications or meeting certain standards.

■ officially declare (someone) insane.

– derivatives
certifier noun.
– origin ME: from OFr. certifier, from late L. certificare, from L. certus ‘certain’.
'certify' also found in these Oxford entries:

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