The Collaborative International Dictionary of English v.0.48:

Surbet \Sur*bet"\, v. t.
   Same as Surbate. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Surbet \Sur*bet"\, a.
   Surbated; bruised. [Obs.] --Spenser.
   [1913 Webster]