Verb (used with object) : He corroborated my account of the accident.    From Dictionary.com. 

Instead, transcripts of the interviews with Wright and her corroborator were simply entered into the record, drawing only modest press attention.    From Wordnik.com.  [Lillian McEwen breaks her 19-year silence about Justice Clarence Thomas] Reference

Bill Cosby and his corroborator, Dr Alvin Poussaint recently wrote, Come on People, a book in which they emphasize and tie personal responsibility to the community's progress.    From Wordnik.com.  [Pius Kamau: Bill Cosby Forgot Mental Illness] Reference

In a last-minute, late-night maneuver, Wright and her attorney say Biden offered the concept of a letter releasing her from the subpoena but putting her testimony and that of a corroborator in the official record.    From Wordnik.com.  [Mindless Veep Speculation Roundup] Reference

Jode's voice was almost threatening, and he fetched one corroborator after another.    From Wordnik.com.  [Lin McLean] Reference

A perfectly true incident, with which Miss Stanley was well acquainted, brought in as a corroborator of the foregoing!.    From Wordnik.com.  [Vicissitudes in Genteel Life] Reference

But, if on the other hand, he proved a sober and hopeful youth, he would make an excellent companion for your Billy in riper years; as he would be, in a manner, a corroborator of his morals; for, as his circumstances would not support him in any extravagance, so they would be a check upon his inclination; and this being seconded by the hopes of future preferment from your favour and interest, which he could not expect but upon the terms of his perseverance in virtue, he would find himself under a necessity of setting such an example, as might be of great benefit to his companion, who should be watched, as he grew up, that he did not (if his ample fortune became dangerous to his virtue) contribute out of his affluence to draw the other after him into extravagance.    From Wordnik.com.  [Pamela] Reference