authenticate

US /ɑːˈθen.t̬ə.keɪt/
UK /ɑːˈθen.t̬ə.keɪt/
1.

認証する

to prove that something is real, true, or what people say it is:

:
•
They used carbon dating tests to authenticate the claim that the skeleton was two million years old.
:
authenticauthenticity