carboy vs waterpot

carboy

noun
  • A large, rigid bottle, originally made of glass and mainly used for fermentation, and now commonly made of plastic and used to store liquids. 

verb
  • To bottle in a carboy. 

waterpot

noun
  • A pot or jug for holding water. 

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