1) Barbarise 2) Change 1) Barbarise 
• (v. t.) To make barbarous. • (v. i.) To become barbarous. • (v. i.) To adopt a foreign or barbarous mode of speech.
Bar'ba·rize intransitive verb [ imperfect & past participle Barbarized ; present participle & verbal noun Barbarizing ] 1. To become barbarous. « The Roman empire was barbarizing rapidly from the time of Trajan.�...
[v] - become crude or savage or barbaric in behavior or language 2. [v] - make crude or savage in behavior or speech
barbarize 1. To make crude or savage in behavior or speech. 2. To become crude or savage or barbaric in behavior or language.
barbarise verb make crude or savage in behavior or speech; `his years in prison have barbarized the young man`