catafalque vs larnax

catafalque

noun
  • A platform used to display or convey a coffin during a funeral, often ornate. 

larnax

noun
  • A small closed coffin, box or cinerary urn often used as a container for human remains in Ancient Greece. 

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