cleanse vs pollute

cleanse

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

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

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

noun
  • An act of cleansing; a purification. 

pollute

verb
  • To make something harmful, especially by the addition of some unwanted product. 

  • To violate sexually; to debauch; to dishonour. 

  • To make something or somewhere less suitable for some activity, especially by the introduction of some unnatural factor. 

  • To corrupt or profane 

adj
  • Polluted; defiled. 

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