The Collaborative International Dictionary of English v.0.48:

Rusticate \Rus"ti*cate\, v. i. [imp. & p. p. Rusticated; p.
   pr. & vb. n. Rusticating.] [L. rusticaticus, p. p. of
   rusticari to rusticate. See Rustic.]
   To go into or reside in the country; to ruralize. --Pope.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rusticate \Rus"ti*cate\, v. t.
   To require or compel to reside in the country; to banish or
   send away temporarily; to impose rustication on.
   [1913 Webster]

         The town is again beginning to be full, and the
         rusticated beauty sees an end of her banishment.
                                                  --Idler.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rusticate
    v 1: live in the country and lead a rustic life
    2: send to the country; "He was rusticated for his bad behavior"
    3: suspend temporarily from college or university, in England
       [syn: send down, rusticate]
    4: give (stone) a rustic look
    5: lend a rustic character to; "rusticate the house in the
       country"

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "rusticate":
   ban, banish, blackball, cast out, cop out, countrify, cut, deport,
   disfellowship, exclude, excommunicate, exile, expatriate, expel,
   extradite, farm, forsake the world, fugitate, go into retirement,
   live alone, live apart, live in retirement, ostracize, outlaw,
   pastoralize, proscribe, relegate, remain incommunicado, retire,
   send away, send down, send to Coventry, snub, spurn, stay at home,
   take the veil, thrust out, transport