Thoroughpaced

"I, who found it hard matter to keep up my less thoroughpaced steed with the speed of her perfect little Pegasus, […]"

"[T]he terrors of superior authority were plainly perceivable in his features, and in less than three months he became a thorough-paced husband."

"The improbability of a thoroughpaced scoundrel writing daily elaborate confessions of his criminality to a friend, even when the friend condemns him, expatiating upon atrocities that deserved hanging, and justifying his vices on principle, is rather too glaring to be admissible."