Webster 1913 Edition
cruet, a dim. from OF.
cruie; of German or Celtic origin, and akin to E.
crockan earthen vessel.]
A bottle or vessel; esp., a vial or small glass bottle for holding vinegar, oil, pepper, or the like, for the table; a caster.
A vessel used to hold wine, oil, or water for the service of the altar.
Webster 1828 Edition