dormitory vs posada

dormitory

noun
  • A dormitory town. 

  • A room containing a number of beds (and often some other furniture and/or utilities) for sleeping, often applied to student and backpacker accommodation of this kind. 

  • A building or part of a building which houses students, soldiers, monks etc. who sleep there and use communal further facilities. 

posada

noun
  • An inn in Spanish-speaking regions. 

  • A traditional Mexican Christmas procession. 

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