dispersal vs soaking

dispersal

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

  • A dispersal prison. 

soaking

adj
  • Of rain, heavy but slow enough to penetrate deeply into the top soil. 

  • Extremely wet; saturated. 

noun
  • Immersion in water; a drenching or dunking. 

  • The practice of inserting a penis into a vagina and remaining stationary, without thrusting, supposedly used by some conservative Christians in lieu of traditional sexual intercourse. 

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