confoundment vs disarticulation

confoundment

noun
  • the state of being confounded 

  • something which is or has been confounded 

disarticulation

noun
  • The act of disarticulating. 

  • Some amputations: where a joint is disarticulated: e.g. knee, hip, elbow or shoulder disarticulation. 

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