"Attestor" is a word in ENGLISH

attestor ENGLISH
Definition:

One who attests.

Few words of positivity

The girl's face was the color of talcum. Her uncle's was a death mask, a bone structure overlaid by parchment. Shane's was granite, with a glistening line of sweat just below his hair line. He'd never forget this night, the detective knew, no matter what else happened for the rest of his life. They were all getting scars on their souls, the sort of scars people got in the Dark Ages, when they believed in devils and black magic. ("Speak To Me Of Death")

Cornell Woolrich, The Fantastic Stories of Cornell Woolrich

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When the new patient was settled comfortably on the couch, the physiatrist began his therapy session, "I'm not aware of your problem," the doctor said. "So perhaps, you should start at the very beginning.""Of course." replied the patient. "In the beginning, I created the Heavens and the Earth..."

A declaration or avowal of one's own act, to give it legal validity; as, the acknowledgment of a deed before …

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Acte LAW AND LEGAL

In French law, denotes a docu* ment, or formal, solemn writing, embodying a legal attestation that something has been done, …

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subscribe ENGLISH

To attest by writing one's name beneath; as, officers subscribe their official acts, and secretaries and clerks subscribe copies or …

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voucher ENGLISH

One who vouches, or gives witness or full attestation, to anything.

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