noun.
One whose profession in general, or role in a particular event, is to carry a cup.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the attendant (usually an officer of a nobleman's household) whose duty is to fill and serve cups of wine
Word Usage
"His youngest daughter, Hebe, goddess of beauty and youth—sometimes known as the patron goddess of the young bride and an attendant of the goddess Aphrodite—was his cupbearer."