chalice vs demijohn

chalice

noun
  • A kind of water-cooled pipe for smoking cannabis. 

  • A large drinking cup, often having a stem and base and used especially for formal occasions and religious ceremonies. 

demijohn

noun
  • A large bottle with a short neck, sometimes with two small handles at the neck, sometimes encased in wickerwork. 

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