Cov (entry) is practising constantly his astucity upon, and whom he thinks that he deceives.    From Wordnik.com.  [George Selwyn: His Letters and His Life] Reference

Sometimes, when ascending hills, when the winded horse breathed hard from his nostrils, and heaved his flanks, the captain, left to more freedom of thought, reflected upon the prodigious genius of Aramis, a genius of astucity and intrigue, such as the Fronde and the civil war had produced but two.    From Wordnik.com.  [The Vicomte de Bragelonne Or Ten Years Later being the completion of "The Three Musketeers" And "Twenty Years After"] Reference

With astucity, with swiftness, with audacity!.    From Wordnik.com.  [The French Revolution] Reference