dunny vs longhouse

dunny

noun
  • Any other place or fixture used for urination and defecation: a latrine; a lavatory; a toilet. 

adj
  • Somewhat deaf, hard of hearing. 

  • Slow to answer: stupid, unintelligent. 

  • Somewhat dun, dusky brownish. 

longhouse

noun
  • A long communal housing of the Iroquois and some other American Indians, the Malaysians, the Indonesians, the Vikings, and many other peoples. 

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