facundity

With this, I sat down, leaving my audience as sotto voce as fishes with admiration and amazement at the facundity of my eloquence, and should indubitably have been the recipient of innumerable felicitations but for the fact that Miss Spink, suddenly experiencing sensations of insalubriousness, requested me, without delay, to conduct her from the assemblage.

Right and wrong stand fast, and cannot be changed by any facundity.

There had been a time when Chouteau, thanks to his facundity of the faubourg, had interested and almost convinced him, but now he had come to detest that apostle of falsehood, that snake in the grass, who calumniated honest effort of every kind in order to sicken others of it.