attorn vs dispose of

attorn

verb
  • To transfer one's obligations from a person to another person. 

  • To consent to the transfer of one's obligations as tenant under a lease to a new landlord. 

  • To acknowledge the jurisdiction of (a particular court) over one's dispute. 

dispose of

verb
  • To transfer to another's control. 

  • To get rid of. 

  • To arrange in an orderly way. 

  • To deal with conclusively with a threat or a difficult situation. 

  • To have available, or at one's disposal. 

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