reliquiae vs remains

reliquiae

noun
  • Artifacts; things made or modified by human art. 

  • Remains, especially of fossil organisms. 

remains

noun
  • Historical or archaeological relics. 

  • All that is left of the stock of some things; remnants. 

  • What is left after a person (or any organism) dies; a corpse. 

  • The extant writings of a deceased person. 

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