The Collaborative International Dictionary of English v.0.48:

Deracinate \De*rac"i*nate\ (d[-e]*r[a^]s"[i^]*n[=a]t), v. t.
   [imp. & p. p. Deracinated (d[-e]*r[a^]s"[i^]*n[=a]`t[e^]d);
   p. pr. & vb. n. Deracinating
   (d[-e]*r[a^]s"[i^]*n[=a]`t[i^]ng).] [F. d['e]raciner; pref.
   d['e]- (L. dis) + racine root, fr. an assumed LL. radicina,
   fr. L. radix, radicis, root.]
   To pluck up by the roots; to extirpate. [R.]
   [1913 Webster]

         While that the colter rusts
         That should deracinate such savagery.    --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

deracinate
    v 1: move (people) forcibly from their homeland into a new and
         foreign environment; "The war uprooted many people" [syn:
         uproot, deracinate]
    2: pull up by or as if by the roots; "uproot the vine that has
       spread all over the garden" [syn: uproot, extirpate,
       deracinate, root out]