stewpot vs tian

stewpot

noun
  • A pot used for making stew, usually large and heavy. 

  • A jumble, especially one that lacks intellectual coherence. 

tian

noun
  • An oval cooking-pot, traditionally used in Provence. 

  • A Provençal dish of layered baked vegetables. 

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