Source : Webster's Revised Unabridged Dictionary (1913)

Pothouse \Pot"house`\, n.
   An alehouse. --T. Warton.

Source : WordNet®

pothouse
     n : tavern consisting of a building with a bar and public rooms;
         often provides light meals [syn: {public house}, {pub}, {saloon},
          {gin mill}, {taphouse}]