Source : Webster's Revised Unabridged Dictionary (1913)

Prowl \Prowl\, v. t. [imp. & p. p. {Prowled}; p. pr. & vb. n.
   {Prowling}.] [OE. prollen to search about; of uncertain
   origin, perh. for proglen, a dim. of prog to beg, or proke to
   poke. Cf. {Proke}.]
   1. To rove over, through, or about in a stealthy manner;
      esp., to search in, as for prey or booty.

            He prowls each place, still in new colors decked. --
                                                  Sir P. Sidney.

   2. To collect by plunder; as, to prowl money. [Obs.]

Prowling \Prowl"ing\, a.
   Accustomed to prowl, or engaged in roving stealthily, as for
   prey. ``A prowling wolf.'' --Milton. -- {Prowl"ing*ly}, adv.