Flagacious

I hope Gentlemen, you will put all the Discountenance imaginable on that flagacious Crime of Pyracy, which is not only the worst sort of Robbery, but is, for the most part attended with the horrid Sin of Murder, which is a great aggravation of that odious Practice, detested by all the Civil Nations of the World.

If it be for some open immorality or flagacious crime, or some capital error, which overthrow's the foundation of our faith and hope, like the errors of Hymeneus and Alexander; then the delinquent must be immediately separated from the communion of the saints, as soon as the crime charged upon him can be proved against him

In the debate therefore, which arose in the senate upon the merit of his negative, Cicero provoked to find so desperate a confederacy against him, rose up, and after some railery and expostulation with Mucius, made a most severe invective on the flagacious lives and practices of his two competitors, in a speech usually called in toga candida, because it was delivered in a white gown, the proper habit of all candidates, and from which the name itself were derived. (the original (1756) edition has flagitious)

The present parliament has been packed with the aid of the most flagacious bribery to oppress and crush the Irish nation. (Shaw's Authenticated Report of the Irish State Trials, 1844 p. 65 has flagitious)

The consequence of this is, there is no other possible mode of vacating the office thus protracted against the will of the officer during the session of the Senate, however flagacious and imperious his personal or official conduct may be except through the conditional process of impeachment. (Louisville Daily Journal 13 August 1868 p. 1 col. 2 and Sacramento Daily Union, 28 August 1868 p. 1 col. 4 have flagitious)