consolidation vs dispersal

consolidation

noun
  • The combination of several actions into one. 

  • A solidification into a firm dense mass. It is usually applied to induration (swelling or hardening of normally soft tissue) of a normally aerated lung. 

  • The act or process of consolidating, making firm, or uniting; the state of being consolidated 

dispersal

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

  • A dispersal prison. 

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