sacrarium vs sacristy

sacrarium

noun
  • In Ancient Rome, a place where sacred objects were kept, either in a temple (the adytum) or in a house (holding the penates) 

  • The complex sacrum of any bird. 

  • The area surrounding the altar of a Christian church; the sanctuary or piscina. Sometimes specifically a drain directly to the earth, perhaps including reference to a basin, for washing vessels from consecration. 

sacristy

noun
  • A room in a church where sacred vessels, books, vestments, etc. are kept. Sometimes also used by clergy to prepare for worship or for meetings. 

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