disown vs espouse

disown

verb
  • To refuse to own, or to refuse to acknowledge one’s own. 

  • To repudiate any connection to; to renounce. 

  • To detach (a job or process) so that it can continue to run even when the user who launched it ends his/her login session. 

espouse

verb
  • To accept, support, or take on as one’s own (an idea or a cause). 

  • To become/get married to. 

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