commode vs shitter

commode

noun
  • A toilet. 

  • A stand for a washbowl and jug. 

  • A kind of woman's headdress, raising the hair and fore part of the cap to a great height. 

  • A chair containing a chamber pot. 

  • A low chest of drawers on short legs. 

shitter

noun
  • A toilet or lavatory; an outhouse. 

  • One who defecates. 

  • The anus. 

  • Someone lacking skill, especially in a video game. 

  • An objectionable person or thing. 

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