cauldron vs gallipot

cauldron

noun
  • A large bowl-shaped pot used for boiling over an open flame. 

  • A strategic encirclement. 

gallipot

noun
  • A small, glazed earthenware jar once used by apothecaries for holding medicine and ointment. 

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