abandon vs jettison

abandon

verb
  • To desist in doing, practicing, following, holding, or adhering to; to turn away from; to permit to lapse; to renounce; to discontinue. 

  • To no longer exercise a right, title, or interest, especially with no interest of reclaiming it again; to yield; to relinquish. 

  • To give up or relinquish control of, to surrender or to give oneself over, or to yield to one's emotions. 

  • To leave behind; to desert, as in a ship, a position, or a person, typically in response to overwhelming odds or impending dangers; to forsake, in spite of a duty or responsibility. 

  • To surrender to the insurer (an insured item), so as to claim a total loss. 

noun
  • A yielding to natural impulses or inhibitions; freedom from artificial constraint, with loss of appreciation of consequences. 

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. 

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