The Collaborative International Dictionary
Devulgarize
Devulgarize \De*vul"gar*ize\, v. t. To free from what is vulgar, common, or narrow.
Shakespeare and Plutarch's ``Lives'' are very
devulgarizing books.
--E. A.
Abbott.
Wiktionary
devulgarize
vb. (context transitive English) To free from what is vulgar or common.