Verb (used with object) : to attest the truth of a statement. ,His works attest his industry.    From Dictionary.com. 

Verb (used without object) : to attest to the reliability of an employee.    From Dictionary.com. 

This analysis is more optimal since if we think of this as a game of cards, two attested words and a dis legomenon i.e. a word attested only twice beats two hapaxes any day.    From Wordnik.com.  [Archive 2007-07-01] Reference

His incredulous expression attested that he had missed nothing of their exchange.    From Wordnik.com.  [Conan and the Emerald Lotus]

Are you one of those that are called the attested ones? ".    From Wordnik.com.  [Punch, or the London Charivari, Vol. 150, March 29, 1916] Reference

In its absence they accepted as correct the 13th of June edition of the "attested" copy.    From Wordnik.com.  [Reminiscences and Memoirs of North Carolina and Eminent North Carolinians] Reference

Our village has sent practically all its able-bodied men of military age to the front; the few that remain are "attested" and only waiting to be called up.    From Wordnik.com.  [The War on All Fronts: England's Effort Letters to an American Friend] Reference

Ware also attested to his desire to expose more people to the horrors of war.    From Wordnik.com.  [Michael Ware, Former CNN War Correspondent, Speaks Out On Alleged War Crime CNN Refused To Air [UPDATED]] Reference

His military sagacity is attested by so high an authority as General Sherman.    From Wordnik.com.  [The Life of Abraham Lincoln] Reference

Moderns have also attested their merit, and our great dramatist in his amusing.    From Wordnik.com.  [The Story of Rome from the Earliest Times to the End of the Republic] Reference

Flowering plants and rose trees, in full bloom, attested the glorious wealth of June.    From Wordnik.com.  [Destruction and Reconstruction: Personal Experiences of the Late War] Reference

Numerous well-attested cures were performed by Smith and his followers in other places.    From Wordnik.com.  [Three Thousand Years of Mental Healing] Reference

The specification and claim shall be signed by the inventor and attested by two witnesses.    From Wordnik.com.  [One Thousand Secrets of Wise and Rich Men Revealed] Reference

That flesh-eating is not necessary to the perfect health of man is attested by many scientists.    From Wordnik.com.  [The Golden Age Cook Book] Reference

The efficiency of the work of my guns was attested to me by numerous Spanish officers and prisoners.    From Wordnik.com.  [History of the Gatling Gun Detachment] Reference

It has attested the declaration of Brougham, that "he was the greatest man of his own or of any age.".    From Wordnik.com.  [America First Patriotic Readings] Reference

These are attested by a long record of most excellent service, but in the clash of arms at and near Five.    From Wordnik.com.  [Memoirs of the Union's Three Great Civil War Generals] Reference

The thickly strewn plain attested at once the heroic courage of the men, and the hopelessness of the contest.    From Wordnik.com.  [Red-Tape and Pigeon-Hole Generals As Seen From the Ranks During a Campaign in the Army of the Potomac] Reference

The market seemed to be charmed by Geithner's charade, attested to by rising equity values of financial firms.    From Wordnik.com.  [Sheldon Filger: European Bank Stress Tests are Tragic-Comedic Farce] Reference

The distressed condition of the yeoman farmer in Norway is strongly attested by his heavy and growing indebtedness.    From Wordnik.com.  [The Quarterly Review, Volume 162, No. 324, April, 1886] Reference

Aides attested that he was mortified, more personally than politically, to have insulted a Labour-voting grandmother.    From Wordnik.com.  [The Two Faces Of Gordon Brown] Reference

The writer of “Under the Clock” considers that “well-attested” stories of this kind should be given publicity.    From Wordnik.com.  [The Better Germany in War Time Being some Facts towards Fellowship] Reference

But it is repugnant to their custom for any man to use arms, before the community has attested his capacity to wield them.    From Wordnik.com.  [Tacitus on Germany] Reference

Our companions were wrapped in unconsciousness, and their deep and regular breathing attested the soundness of their slumbers.    From Wordnik.com.  [The Island Home] Reference

As required by Ohio law, the buyers duly attested that the guns were for their personal use, which was good enough for Dillard.    From Wordnik.com.  [Story of a Gun] Reference

Taylor cites one of the best attested examples of a human cultural innovation leading to genetic change: the drinking of cow's milk.    From Wordnik.com.  [The Artificial Ape: How Technology Changed the Course of Human Evolution by Timothy Taylor] Reference

It is mentioned that he was of a manly and handsome appearance; but the baseness of his character is attested also by other authors.    From Wordnik.com.  [C. Sallusti Crispi De Bello Catilinario Et Jugurthino] Reference

Excitement quickly gave way to confusion in the wake of conflicting statements that attested to controversy within the regime in Tehran.    From Wordnik.com.  [Iran frees US hiker accused of spying after 13 months] Reference

That this is true, is attested by the widely-spread discussion and the contemporaneous attempts at reform in widely-separated countries.    From Wordnik.com.  [The Education of American Girls] Reference

And of course there's this, you know, huge debate on the Internet right now whether or it was vitiligo, as he attested, or something else.    From Wordnik.com.  [Jackson's Conflicted Legacy Examined] Reference

I adduce this individual instance, simply because it is the last I have heard, out of many that have come before me equally well attested.    From Wordnik.com.  [Blackwood's Edinburgh Magazine, Volume 61, No. 379, May, 1847] Reference

As my own stories have confessed, it is a critical component in the demonstration of good judgment and as others have attested, to survival.    From Wordnik.com.  [Judith Acosta, LISW, CHT: Fear and Verbal First Aid for Children] Reference

(Deadball era pitcher Pud Galvin was injecting himself with monkey testosterone in 1889; Mickey Mantle's use of anabolic steroids is attested fact.).    From Wordnik.com.  [Asher Smith: The Heisman Trust Gets an "F" for History] Reference

I don't speak German, but the nose prints left on the car's windows attested to the widespread recognition and anticipation of this next-generation Porsche.    From Wordnik.com.  [A Porsche to Fit the Whole Family] Reference

And he forbids the publishing from the pulpit, without leave, of any account of a miracle, even though its authenticity should be attested by another Bishop!.    From Wordnik.com.  [Life in the Grey Nunnery at Montreal] Reference

Other plant workers came forward to corroborate Hithon's story and attested to the "mean and derogatory" nature of the manager's comportment toward black employees.    From Wordnik.com.  [Asher Smith: Is America Post-Racial? Or Just Forgetful?] Reference

"It's the next level, it's the pros of cheerleading, it's bigger and better," attested Michele, one of the members of the squad, which has been around only since 2007.    From Wordnik.com.  [On Sidelines, Only the Sunniest Need Apply] Reference

All are agreed that he was both a logophile and a bibliophile as attested to by his love of etymology and neologistic wordplay, and the over 10,000 books in his personal library.    From Wordnik.com.  [Excerpt from Calembouria (in collaboration with Anthony Metivier)] Reference