debase vs pervert

debase

verb
  • To lower in character, quality, or value; to degrade. 

  • To lower the value of (a currency) by reducing the amount of valuable metal in the coins. 

pervert

verb
  • To corrupt; to cause to be untrue; corrupted or otherwise impure 

  • To turn another way; to divert. 

  • to misinterpret designedly. 

  • To misapply, misuse, use for a nefarious purpose 

  • To become perverted; to take the wrong course. 

noun
  • A person whose sexual habits are not considered acceptable. 

How often have the words debase and pervert occurred in a corpus of books? (source: Google Ngram Viewer )