jamb vs strengthen

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. 

strengthen

verb
  • To reinforce, to add to, to support (someone or something) 

  • To make strong or stronger; to add strength to; to increase the strength of; to fortify. 

  • To empower; to give moral strength to; to encourage; to enhearten. 

  • To grow strong or stronger. 

  • To substantiate; to corroborate (a belief, argument, etc.) 

  • To augment; to improve; to intensify. 

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