calyx vs chalice

calyx

noun
  • A chamber in the mammalian kidney through which urine passes. 

  • The outermost whorl of flower parts, comprising the sepals, which covers and protects the petals as they develop. 

  • The crown containing the viscera of crinoids and similar echinoderms, entoprocts, and the polyps of some cnidarians. 

  • A flattened cap of neuropil in the brain of insects. 

  • A funnel-shaped expansion of the vas deferens or oviduct of insects. 

chalice

noun
  • A kind of water-cooled pipe for smoking cannabis. 

  • A large drinking cup, often having a stem and base and used especially for formal occasions and religious ceremonies. 

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