disperse vs stockpile

disperse

verb
  • To distribute throughout. 

  • To break up and disappear; to dissipate. 

  • To scatter in different directions. 

  • To disseminate. 

  • To separate rays of light, etc., according to wavelength; to refract. 

adj
  • Scattered or spread out. 

stockpile

verb
  • To accumulate or build up a supply of (something). 

  • To build up a stock of (nuclear weapons). 

  • To heap up piles of (coal or ore) on the ground after it has been mined. 

  • To build up a supply; to accumulate. 

noun
  • A supply of nuclear weapons kept by a country; a nuclear stockpile. 

  • A pile of coal or ore heaped up on the ground after it has been mined. 

  • A supply (especially a large one) of something kept for future use, specifically in case the cost of the item increases or if there a shortage. 

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