disengage vs lay open

disengage

verb
  • To release or loosen from something that binds, entangles, holds, or interlocks. 

noun
  • A circular movement of the blade that avoids the opponent's parry 

lay open

verb
  • To open (something) through cutting or scissoring. 

  • To expose or reveal (something). 

  • To publish a patent for initial public review, prior to the formal application for registration. 

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