ciborium vs dargah

ciborium

noun
  • A covered receptacle for holding the consecrated wafers of the Eucharist. 

  • A fixed vaulted canopy over a Christian altar, supported on four columns. 

dargah

noun
  • A shrine associated with the grave of a Muslim saint or similar religious figure. 

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