depravation vs warping

depravation

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

  • Detraction; depreciation. 

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

  • Change for the worse; deterioration; morbid perversion. 

warping

noun
  • An action or motion that warps or twists. 

  • The art or occupation of preparing warp or webs for the weaver. 

  • The practice of flooding agricultural land with turbid river water to add sediment to the soil. 

  • the deformation of the Earth's crust over a large area 

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