As to prose, I don't know Addison's from Johnson's; but I will try to mend my cacology.    From Wordnik.com.  [Life of Lord Byron, Vol. 3 (of 6) With His Letters and Journals] Reference

Even Shakespeare might have been glad of such an opportunity to enlarge the cacology, by actual hearing, of some of his most amusing characters.    From Wordnik.com.  [Old New England Traits] Reference

Chambers gives several interesting words with the caco - root, eg "cacoepy", bad pronunciation, "cacology", also bad pronunciation and bad choice of words as well.    From Wordnik.com.  [Ephems of BLB] Reference

For his part, Jermaine's continual stumping on his leadership abilities to the media in addition to the occasional cacology never helped raise his standing amongst the fan base.    From Wordnik.com.  [Indy Cornrows] Reference

Notwithstanding the oft-repeated cacology to the effect that we shall not be handing over conduct of our foreign affairs to the EU, we shall discover soon enough that that is a lot of rot and that not only is the new EU Foreign Minister gadding about speaking for all of us at the UN and gaily signing Treaties on ‘our behalf’ but that person will also, as Article 9e of the Treaty of Lisbon tells us, be in charge of our defence.    From Wordnik.com.  [Blair? How Many Divisions Has He Got?] Reference

'verbage,' is scorned as 'elitist,' and cacology is flaunted as a mark of authenticity, words become a tool of obfuscation, manipulation, and oppression. ".    From Wordnik.com.  [Critical Mass] Reference

The Chevalier de Chamant, who was originally a box-maker, and a man of genius, considering box-making a plebeian occupation, was for deducing a logical position, not exactly perhaps by fair argument, but at all events through the teeth, and was determined, although he could not, like Dr. Pangloss, mend the cacology of his friends, at least to give them an opportunity for plenty of jaw-work.    From Wordnik.com.  [Real Life In London, Volumes I. and II. Or, The Rambles And Adventures Of Bob Tallyho, Esq., And His Cousin, The Hon. Tom Dashall, Through The Metropolis; Exhibiting A Living Picture Of Fashionable Characters, Manners, And Amusements In High And Low Life (1821)] Reference