infirmary vs sickroom

infirmary

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

  • A clinic or dispensary within another institution. 

sickroom

noun
  • A room to be used by someone who is ill. 

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