crave vs entreat

crave

verb
  • To ask for earnestly; to beg; to claim. 

  • To desire strongly, so as to satisfy an appetite; to long or yearn for. 

noun
  • A formal application to a court to make a particular order. 

entreat

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

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

noun
  • An entreaty. 

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