gymnasium vs refectory

gymnasium

noun
  • A large room or building for indoor sports. 

  • A type of secondary school in some European countries which typically prepares students for university. 

  • A public place or building where Ancient Greek youths took exercise, with running and wrestling grounds, baths, and halls for conversation. 

refectory

noun
  • A dining hall, especially in an institution such as a college or monastery. 

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