Confirmed or proven to be true, real, or authentic by evidence or witness testimony.
Past participle of attest, from Latin attestari (to bear witness to). The prefix at- is from ad- meaning 'to,' emphasizing the action of bearing witness toward something.
Archaeologists use 'attested' to describe artifacts that prove something really happened in history—for instance, 'the earliest attested writing system is Sumerian cuneiform from around 3200 BCE.'
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