Source : Webster's Revised Unabridged Dictionary (1913)

Raff \Raff\, v. t. [imp. & p. p. {Raffed}; p. pr. & vb. n.
   {Raffing}.] [OF. raffer, of German origin; cf. G. raffen;
   akin to E. rap to snatch. See {Rap}, and cf. {Riffraff},
   {Rip} to tear.]
   To sweep, snatch, draw, or huddle together; to take by a
   promiscuous sweep. [Obs.]

         Causes and effects which I thus raff up together.
                                                  --Carew.

Raff \Raff\, n.
   1. A promiscuous heap; a jumble; a large quantity; lumber;
      refuse. ``A raff of errors.'' --Barrow.

   2. The sweepings of society; the rabble; the mob; -- chiefly
      used in the compound or duplicate, riffraff.

   3. A low fellow; a churl.

   {Raff merchant}, a dealer in lumber and odd refuse. [Prov.
      Eng.]