Source : Webster's Revised Unabridged Dictionary (1913)

Spilth \Spilth\, n. [From {Spill}.]
   Anything spilt, or freely poured out; slop; effusion.
   [Archaic] ``With drunken spilth of wine.'' --Shak.

         Choicest cates, and the flagon's best spilth. --R.
                                                  Browning.