ciborium
noun
[ sɪˈbɔːrɪəm ]
• a receptacle shaped like a shrine or a cup with an arched cover, used in the Christian Church to hold the Eucharist.
• a canopy over an altar in a church, standing on four pillars.
Origin:
mid 16th century: via medieval Latin from Greek kibōrion ‘seed vessel of the water lily or a cup made from it’. ciborium (sense 1) is probably influenced by Latin cibus ‘food’.