adopt vs feign

adopt

verb
  • To take by choice into the scope of one's responsibility. 

  • To take voluntarily (a child of other parents) to be in the place of, or as, one's own child. 

  • To take or receive as one's own what is not so naturally. 

  • To obtain (a pet) from a shelter or the wild. 

  • To select and take or approve. 

  • To beat an opponent ten times in a row. 

feign

verb
  • To make an action as if doing one thing, but actually doing another, for example to trick an opponent; to feint. 

  • To hide or conceal. 

  • To make a false show or pretence of; to counterfeit or simulate. 

  • To imagine; to invent; to pretend to do something. 

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