Source : Webster's Revised Unabridged Dictionary (1913)

Sconce \Sconce\, v. t. [imp. & p. p. {Sconced}; p. pr. & vb. n.
   {Sconcing}.]
   1. To shut up in a sconce; to imprison; to insconce. [Obs.]

            Immure him, sconce him, barricade him in 't.
                                                  --Marston.

   2. To mulct; to fine. [Obs.] --Milton.