The Collaborative International Dictionary of English v.0.48:

Incarcerate \In*car"cer*ate\, v. t. [imp. & p. p.
   Incarcerated; p. pr. & vb. n. Incarcerating.] [Pref. in-
   in + L. carceratus, p. p. of carcerare to imprison, fr.
   carcer prison.]
   [1913 Webster]
   1. To imprison; to confine in a jail or prison.
      [1913 Webster]

   2. To confine; to shut up or inclose; to hem in.
      [1913 Webster]

   Incarcerated hernia (Med.), hernia in which the
      constriction can not be easily reduced.
      [1913 Webster] incarcerate

The Collaborative International Dictionary of English v.0.48:

incarcerate \in*car"cer*ate\, incarcerated \in*car"cer*at*ed\,
   a.
   Imprisoned. --Dr. H. More.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

41 Moby Thesaurus words for "incarcerated":
   barred, behind bars, beleaguered, beset, besieged, blockaded,
   bound, cabined, caged, cloistered, closed-in, confined, cooped,
   cordoned, cordoned off, corralled, cramped, cribbed, enclosed,
   fenced, hedged, hemmed, immured, imprisoned, in captivity,
   in durance vile, in prison, in stir, jailed, leaguered, locked up,
   mewed, paled, penned, pent-up, quarantined, railed, restrained,
   shut-in, walled, walled-in