bughouse vs infirmary

bughouse

noun
  • A hospital, especially a lunatic asylum. 

  • A flea-infested hotel, lodging-house etc. 

  • A prison. 

  • A cheap and dirty cinema. 

adj
  • Crazy, insane. 

infirmary

noun
  • A place where sick or injured people are cared for, especially a small hospital; sickhouse. 

  • A clinic or dispensary within another institution. 

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