attorn vs consign

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. 

consign

verb
  • To transfer to the custody of, usually for sale, transport, or safekeeping. 

  • To stamp or impress; to affect. 

  • To send to a final destination. 

  • To entrust to the care of another. 

  • To assign; to devote; to set apart. 

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