Source : Webster's Revised Unabridged Dictionary (1913)

Spurge \Spurge\, n. [OF. espurge, F. ['e]purge, from OF.
   espurgier to purge, L. expurgare. See {Expurgate}, {Purge}.]
   (Bot.)
   Any plant of the genus Euphorbia. See {Euphorbia}.

   {Spurge flax}, an evergreen shrub ({Daphne Gnidium}) with
      crowded narrow leaves. It is native of Southern Europe.

   {Spurge laurel}, a European shrub ({Daphne Laureola}) with
      oblong evergreen leaves.

   {Spurge nettle}. See under {Nettle}.

   {Spurge olive}, an evergreen shrub ({Daphne oleoides}) found
      in the Mediterranean region.

Spurge \Spurge\, v. t. [Etymol. uncertain.]
   To emit foam; to froth; -- said of the emission of yeast from
   beer in course of fermentation. [Obs.] --W. Cartright.

Source : WordNet®

spurge
     n : any of numerous plants of the genus Euphorbia; usually
         having milky often poisonous juice