depravation vs devaluation

depravation

noun
  • Detraction; depreciation. 

  • The state of being depraved or degenerated; degeneracy; depravity. 

  • Change for the worse; deterioration; morbid perversion. 

  • The act of depraving, or making anything bad; the act of corrupting. 

devaluation

noun
  • Depreciation. 

  • The intentional or deliberate lowering of a currency's value compared to another country's currency or a standard value (e.g. the price of gold). 

  • The removal or lessening of something's value. 

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