The Collaborative International Dictionary of English v.0.48:

Rig \Rig\, v. t. [imp. & p. p. Rigged; p. pr. & vb. n.
   Rigging.] [Norweg. rigga to bind, particularly, to wrap
   round, rig; cf. AS. wr[imac]han to cover.]
   1. To furnish with apparatus or gear; to fit with tackling.
      [1913 Webster]

   2. To dress; to equip; to clothe, especially in an odd or
      fanciful manner; -- commonly followed by out.
      [1913 Webster]

            Jack was rigged out in his gold and silver lace.
                                                  --L'Estrange.
      [1913 Webster]

   To rig a purchase, to adapt apparatus so as to get a
      purchase for moving a weight, as with a lever, tackle,
      capstan, etc.

   To rig a ship (Naut.), to fit the shrouds, stays, braces,
      etc., to their respective masts and yards.
      [1913 Webster]

WordNet (r) 3.0 (2006):

rigged
    adj 1: fitted or equipped with necessary rigging (sails and
           shrouds and stays etc) [ant: unrigged]