corroboration vs nix

corroboration

noun
  • That which corroborates. 

  • The act of corroborating, strengthening, or confirming; addition of strength; confirmation 

nix

noun
  • Nothing. 

  • A treacherous water-spirit; a nixie. 

verb
  • To make something become nothing; to reject or cancel. 

  • To destroy or eradicate. 

intj
  • No! Not at all! 

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