baring vs denudation

baring

noun
  • The act by which something is laid bare. 

denudation

noun
  • The act of stripping off covering, or removing the surface; a making bare. 

  • The laying bare of rocks by the washing away of the overlying earth, etc.; or the excavation and removal of them by the action of running water. 

  • The loss of the cellular covering of (the interior or exterior surface of an organ, etc.). 

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