Source : Webster's Revised Unabridged Dictionary (1913)

Multum \Mul"tum\, n.
   An extract of quassia licorice, fraudulently used by brewers
   in order to economize malt and hops. --Craig.

   {Hard multum}, a preparation made from {Cocculus Indicus},
      etc., used to impart an intoxicating quality to beer.