jamb vs lay open

jamb

verb
  • To fix or attach a jamb to. 

noun
  • Synonym of jambeau (“piece of armor for the leg”). 

  • Either of the vertical components that form the side of an opening in a wall, such as that of a door frame, window frame, or fireplace. 

  • Any thick mass of rock that prevents miners from following the lode or vein. 

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 jamb and lay open occurred in a corpus of books? (source: Google Ngram Viewer )