bema vs ciborium

bema

noun
  • Raised area of worship in a synagogue upon which rests the Holy Ark containing Scrolls of Torah. 

  • A platform from which speakers addressed an assembly. 

ciborium

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

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

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