alienate vs attorn

alienate

verb
  • To convey or transfer to another, as title, property, or right; to part voluntarily with ownership of. 

  • To estrange; to withdraw affections or attention from; to make indifferent or averse, where love or friendship before subsisted. 

  • To cause one to feel unable to relate. 

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. 

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