jamb vs piling

jamb

noun
  • 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. 

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

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

verb
  • To fix or attach a jamb to. 

piling

noun
  • The process of building up, heating, and working fagots or piles to form bars, etc. 

  • A structural support comprising a length of wood, steel, or other construction material. 

  • The act of heaping up. 

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