Source : Webster's Revised Unabridged Dictionary (1913)

Potman \Pot"man\, n.; pl. {Potmen}.
   1. A pot companion. [Obs.] --Life of A. Wood (1663).

   2. A servant in a public house; a potboy.

Source : WordNet®

potman
     n : a worker in an inn or public house who serves customers and
         does various chores [syn: {potboy}]