Verb (used with object) : foreign influences barbarizing the Latin language.    From Dictionary.com. 

But we, who live remote from history and monuments, we must read or we must barbarise.    From Wordnik.com.  [The Rise of Silas Lapham] Reference

"Manners are what vex or soothe, corrupt or purify, exalt or debase, barbarise or refine us, by a constant, steady, uniform, insensible operation, like that of the air we breathe in.".    From Wordnik.com.  [The Potiphar Papers] Reference

I mean the German Doctor's Latin, who, apologising for false quantity in his pronunciation, said ` nos Ge~rmani non obse~rvamus quanti~tadem sylla~borum. 'the Yankee teachers who come among us barbarise the language in the same way.    From Wordnik.com.  [Letter from Thomas Jefferson to Dr. Thomas Cooper [1817].] Reference

I have said elsewhere, and can scarcely repeat too often, that a day will come when men of science will think their names disgraced, instead of honoured, by being used to barbarise nomenclature; I hope therefore that my own name may be kept well out of the way; but, having been privileged to found the School of Art in the University of Oxford, I think that I am justified in requesting any scientific writers who may look kindly upon this book, to add such of the names suggested in it as they think deserving of acceptance, to their own lists of synonyms, under the head of "Schol.    From Wordnik.com.  [Proserpina, Volume 1 Studies Of Wayside Flowers] Reference