downthrow vs whitewashing

downthrow

noun
  • Ruin; defeat. 

  • A depression of the strata on one side of a fault 

whitewashing

noun
  • The effacement of errors or bad actions. 

  • The application of whitewash. 

  • The process of whitewashing, of making over (a person or character, a group, an event, etc) so that it is or seems more white (Caucasian), for example by applying makeup to a person, or by covering over the participation of people of color in an event and focusing on only white participation. 

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