German-English translations for beglaubigen

accredit
us
The school was an accredited college.
attest
us
When will the appraiser attest the date of the painting?You must attest your will in order for it to be valid.Her fine work attested her ability.

authenticateHe didnt manage to authenticate the portrait: its probably a fake.
certificateThe film is certificate 15
certifyThese blankets have been certified as fireproof.
substantiate
verify