The Collaborative International Dictionary of English v.0.48:

Excruciate \Ex*cru"ci*ate\, v. t. [imp. & p. p. Excruciated;
   p. pr. & vb. n. Excruciating.]
   To inflict agonizing pain upon; to torture; to torment
   greatly; to rack; as, to excruciate the heart or the body.
   [1913 Webster]

         Their thoughts, like devils, them excruciate.
                                                  --Drayton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Excruciate \Ex*cru"ci*ate\, a. [L. excruciatus, p. p. of
   excruciare to excruciate; ex out + cruciare to put to death
   on a cross, to torment. See Cruciate, Cross.]
   Excruciated; tortured.
   [1913 Webster]

         And here my heart long time excruciate.  --Chapman.
   [1913 Webster]

WordNet (r) 3.0 (2006):

excruciate
    v 1: torment emotionally or mentally [syn: torment, torture,
         excruciate, rack]
    2: subject to torture; "The sinners will be tormented in Hell,
       according to the Bible" [syn: torture, excruciate,
       torment]