debuff vs pollute

debuff

verb
  • To make a character or unit weaker. 

noun
  • An effect that makes a game character weaker; a negative status effect. 

pollute

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

  • To violate sexually; to debauch; to dishonour. 

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

  • To corrupt or profane 

adj
  • Polluted; defiled. 

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