jamb vs trestle

jamb

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. 

verb
  • To fix or attach a jamb to. 

trestle

noun
  • A folding or fixed set of legs used to support a tabletop or planks. 

  • A framework, using spreading, divergent pairs of legs used to support a bridge. 

  • A trestle bridge. 

  • A horizontal member supported near each end by a pair of divergent legs, such as sawhorses. 

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