jettison vs scrap

jettison

verb
  • To let go or get rid of as being useless or defective. 

  • To eject from a boat, submarine, aircraft, spaceship or hot-air balloon, so as to lighten the load. 

noun
  • Items that have been or are about to be ejected from a boat or balloon. 

  • The action of jettisoning items. 

scrap

verb
  • To discard. 

  • To make into scrap. 

  • to fight 

  • To stop working on indefinitely. 

  • To scrapbook; to create scrapbooks. 

  • To dispose of at a scrapyard. 

noun
  • Loose-leaf tobacco of a low grade, such as sweepings left over from handling higher grades. 

  • A (small) piece; a fragment; a detached, incomplete portion. 

  • A fight, tussle, skirmish. 

  • The crisp substance that remains after drying out animal fat. 

  • The smallest amount. 

  • Discarded objects (especially metal) that may be dismantled to recover their constituent materials, junk. 

  • A piece of deep-fried batter left over from frying fish, sometimes sold with chips. 

  • A Hispanic criminal, especially a Mexican or one affiliated with the Sureno gang. 

  • Leftover food. 

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