The Collaborative International Dictionary of English v.0.48:

Restrict \Re*strict"\, a. [L. restrictus, p. p. of restringere.
   See Restrain.]
   Restricted. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Restrict \Re*strict"\, v. t. [imp. & p. p. Restricted; p. pr.
   & vb. n. Restricting.]
   To restrain within bounds; to limit; to confine; as, to
   restrict worlds to a particular meaning; to restrict a
   patient to a certain diet.
   [1913 Webster]

   Syn: To limit; bound; circumscribe; restrain; repress; curb;
        coerce.
        [1913 Webster]

WordNet (r) 3.0 (2006):

restrict
    v 1: place restrictions on; "curtail drinking in school" [syn:
         restrict, curtail, curb, cut back]
    2: place under restrictions; limit access to; "This substance is
       controlled" [ant: derestrict]
    3: place limits on (extent or access); "restrict the use of this
       parking lot"; "limit the time you can spend with your
       friends" [syn: restrict, restrain, trammel, limit,
       bound, confine, throttle]
    4: make more specific; "qualify these remarks" [syn: qualify,
       restrict]