potboy

1. A boy employed in a plant nursery to tap clay pots with a stick for their ringing sound, indicating whether the plant required watering.
2. A boy employed as waiter to serve (pots of) drinks, as in a tavern.
3. (British) A boy or man employed in a public house to collect empty pots or glasses.

Etymology

From pot + boy.

Synonyms

potman

barmaid

server

waiter

waitress