chartreuse vs gypsum

chartreuse

noun
  • A kind of enamelled pottery. 

  • A greenish-yellow color. 

  • A French dish of vegetables (and sometimes meat) wrapped tightly in a decorative layer of salad or vegetable leaves and cooked in a dome-shaped mould. 

  • A yellow or green liqueur made by Carthusian monks. 

  • chartreuse (HTML) 

adj
  • Of a bright yellowish-green colour. 

gypsum

noun
  • A mineral consisting of hydrated calcium sulphate. When calcinated, it forms plaster of Paris. 

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