entreat vs sue

entreat

verb
  • To beseech or supplicate (a person); to prevail upon by prayer or solicitation; to try to persuade. 

  • To treat with, or in respect to, a thing desired; hence, to ask for earnestly. 

noun
  • An entreaty. 

sue

verb
  • To seek by request; to make application; to petition; to entreat; to plead. 

  • To file a legal action against someone, generally a non-criminal action. 

  • To clean (the beak, etc.). 

  • To leave high and dry on shore. 

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