vulgarize
From Longman Dictionary of Contemporary Englishvulgarizevul‧gar‧ize (also vulgarise British English) /ˈvʌlɡəraɪz/ verb [transitive] formal SPOILto spoil the quality or lower the standard of something that is good —vulgarization /ˌvʌlɡəraɪˈzeɪʃən $ -rə-/ noun [uncountable]→ See Verb tableExamples from the Corpusvulgarize• He thought: we can vulgarize everything but not this.