jamb vs tighten

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. 

tighten

verb
  • To make tighter. 

  • To raise short-term interest rates. 

  • To make money harder to borrow or obtain. 

  • To become tighter. 

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