devise vs level set

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. 

level set

verb
  • To establish a baseline of mutual understanding 

noun
  • An event consisting of level setting 

  • The set of values x for which a real-valued function f(x) is equal to a given constant. 

  • A state of mutual understanding among parties 

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