devise vs ghostwrite

devise

verb
  • To use one’s intellect to plan or design (something). 

  • To leave (property) in a will. 

noun
  • The act of leaving real property in a will. 

  • Design, devising. 

  • Such a will, or a clause in such a will. 

  • The real property left in such a will. 

ghostwrite

verb
  • To author a literary work or speech in the place of another. 

  • To write under the name of another (especially literary works). 

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