assignee vs recipient

assignee

noun
  • one to whom a thing is assigned 

  • one to whom rights or property is being transferred 

  • one who is appointed to act or speak in place of another; an agent 

recipient

noun
  • One who receives. 

  • An individual receiving donor organs or tissues. 

  • The portion of an alembic or other still in which the distilled liquid is collected. 

adj
  • receiving 

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