• testify against oneself – свидетельствовать против себя
См. также: testator, testamentary guardian, testamentary heir, test
President Bill Clinton pardoned a former business partner, Susan McDougal, who went to jail because she refused to testify in the Whitewater real-estate scandal. (BBC News)
That “they knew what they were getting into” narrative was the reason so many women refused to testify in this trial. (The Telegraph)
Attest and testify come from the same Latin word testari, which means "to declare." Although both words are kind of formal, you often testify in a courtroom, but attest doesn't require a court of law to function. You can attest to anything — that the funny looking shoes toned your thighs, that what someone says is true, or that the new acne medicine really works. To remember it, think of when you pass a test, you attest that you know the material. (Vocabulary.com)
The election official who resisted Donald Trump’s call in January to “find 11,780 votes” to win Georgia has said he is ready to testify against the former president and has handed over documents to prosecutors investigating criminal charges. (The Times)
• testify
• testifies
• testified
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