Brit a small container, e.g. a pot, shaker, or small bottle, for holding a condiment, esp salt, pepper, or mustard, etc at table
Brit a set of cruets on a stand
a vessel to hold wine or water for the Eucharist
a pair of pewter Communion cruets
[Middle English from Anglo-French, dimin. of Old French crue, of Germanic origin; related to Old English crocc crock2]