heft vs knockdown

heft

noun
  • The act or effort of heaving; violent strain or exertion. 

  • Weight. 

  • Heaviness, the feel of weight; heftiness. 

  • A piece of mountain pasture to which a farm animal has become hefted (accustomed). 

  • Poor condition in sheep caused by mineral deficiency. 

  • Influence; importance. 

  • A number of sheets of paper fastened together, as for a notebook. 

  • An animal that has become hefted thus. 

  • A part of a serial publication. 

verb
  • To make (a farm animal, especially a flock of sheep) accustomed and attached to an area of mountain pasture. 

  • To test the weight of something by lifting it. 

  • To lift up; especially, to lift something heavy. 

knockdown

noun
  • An act of knocking down or the condition of being knocked down. 

  • The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface. 

  • A shelter erected for use as a temporary dressing room. 

  • A collection of parts required to assemble a product, typically manufactured in one region and exported elsewhere for assembly. 

  • a short pass played downwards, for example from the head onto someone's feet. 

  • A genetically modified organism that carries one or more genes in its chromosomes that have been made less active or had their expression reduced. 

  • The use of a reagent such as an oligonucleotide with sequence complementary to an active gene or its mRNA transcript, to interfere with the expression of said gene. 

  • An overwhelming blow. 

verb
  • To employ the knockdown technique 

adj
  • To be formed into a head by upsetting in fastening. 

  • reduced in price, originally to a price below which an article would not be sold by the auctioneer 

  • powerful enough to overwhelm or knock down 

  • Capable of being taken apart for packing or removal. 

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