dispersal vs inflation

dispersal

noun
  • The act or result of dispersing or scattering; dispersion. 

  • A dispersal prison. 

inflation

noun
  • An extremely rapid expansion of the universe, theorized to have occurred very shortly after the Big Bang. 

  • An increase in the general level of prices or in the cost of living. 

  • An increase in the quantity of money, leading to a devaluation of existing money. 

  • A decline in the value of money. 

  • Undue expansion or increase, as of academic grades. 

  • An act, instance of, or state of expansion or increase in size, especially by injection of a gas. 

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