| Date: | 1300-1400 |
| Language: | French |
| Origin: | certifier, from Late Latin certificare, from Latin certus; CERTAIN1 |
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cer‧ti‧fy
past tense and past participle certified, present participle certifying, third person singular certifies [transitive]
past tense and past participle certified, present participle certifying, third person singular certifies [transitive]1 to state that something is correct or true, especially after some kind of test :
The accounts were certified by an auditor.
The accounts were certified by an auditor. certify somebody dead (=when a doctor says officially that a person is dead) British English
The driver was certified dead at the scene.
The driver was certified dead at the scene.2 to give an official paper to someone which states that they have completed a course of training for a profession [↪ certificate]
3MPMI to officially state that someone is mentally ill
