eradication vs slaughtering

eradication

noun
  • The act of plucking up by the roots; an uprooting; extirpation; utter destruction. 

  • The state of being plucked up by the roots. 

slaughtering

noun
  • An act of slaughter; a killing. 

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