larnax vs reliquary

larnax

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

reliquary

noun
  • A container to hold or display religious relics. 

  • A person who owes a balance. 

  • An object that sustains the memory of past people or events. 

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