Third-person singular simple present indicative form of attest.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "attests" in a sentence
"Options, as the etymology of the term attests, are actions the agent wishes to do, actions that seem good and worthy of choice to him."
"As the title attests, Brzezinski's book is a memoir about her struggle to maintain family, marriage, career, and self-respect while negotiating the stormy straits of the TV world."
"Doña Marina went with them, mounted behind Cortes, which again attests to her courage and the high esteem in which she was held."