assignee vs stipendiary

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 

stipendiary

noun
  • One who receives a stipend. 

adj
  • receiving a stipend 

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