As a philologist, Victor Klemperer was struck by the way the Nazis delighted in euphemistic neologisms like Volkstumskampf (ethnic conflict) and Flurbereinigung (fundamental cleansing). This daily subversion of the German language, he believed, was far more effective than the more overt kinds of propaganda. Sanitized language also made the cycle of ethnic violence easier to live with.
Niall Ferguson, The War of the World: Twentieth-Century Conflict and the Descent of the West (2006), p. 455