authenticates

/ɑːˈθen.t̬ə.keɪt/

动词

证明…是真实的；确认…的真实性；证实
They used carbon dating tests to authenticate the claim that the skeleton was two million years old.
他们利用碳年代测定法证明，这副骨骼有200万年历史的说法是正确的。