deception vs pretext

deception

noun
  • An instance of actions and/or schemes fabricated to mislead someone into believing a lie or inaccuracy. 

pretext

noun
  • A false, contrived, or assumed purpose or reason; a pretense. 

verb
  • To employ a pretext, which involves using a false or contrived purpose for soliciting the gain of something else. 

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