cleanse vs elutriate

cleanse

verb
  • To spiritually purify; to free from guilt or sin; to purge. 

  • To free from dirt; to clean, to purify. 

  • To remove (something seen as unpleasant) from a person, place, or thing. 

noun
  • An act of cleansing; a purification. 

elutriate

verb
  • To decant; to purify something by straining it. 

  • To separate large and small particles through an upwardly flowing liquid or vapid stream. 

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