The Collaborative International Dictionary of English v.0.48:

Gallize \Gal"lize\, v. t. [imp. & p. p. Gallized; p. pr. & vb.
   n. Gallizing.] [After Dr. L. Gall, a French chemist, who
   invented the process.]
   In wine making, to add water and sugar to (unfermented grape
   juice) so as to increase the quantity of wine produced. --
   Gal`li*za"tion, n.
   [Webster 1913 Suppl.]