The Collaborative International Dictionary of English v.0.48:

Interrupt \In`ter*rupt"\, v. t. [imp. & p. p. Interrupted; p.
   pr. & vb. n. Interrupting.] [L. interruptus, p. p. of
   interrumpere to interrupt; inter between + rumpere to break.
   See Rupture.]
   [1913 Webster]
   1. To break into, or between; to stop, or hinder by breaking
      in upon the course or progress of; to interfere with the
      current or motion of; to cause a temporary cessation of;
      as, to interrupt the remarks of anyone speaking.
      [1913 Webster]

            Do not interrupt me in my course.     --Shak.
      [1913 Webster]

   2. To divide; to separate; to break the monotony of; as, the
      evenness of the road was not interrupted by a single hill.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Interrupt \In`ter*rupt"\, p. a. [L. interruptus, p. p.]
   Broken; interrupted. [Obs.] --Milton.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

71 Moby Thesaurus words for "interrupt":
   arrest, barge in, blow it, bottle up, break, break in, break in on,
   break off, butt in, cease, check, chime in, chip in, countercheck,
   curb, cut in, cut off, cut short, dam up, damp, dampen, defer,
   delay, detain, disarrange, discontinue, disjoin, disrupt, disturb,
   end, go off half-cocked, halt, hinder, hold back, hold in check,
   hold up, horn in, impede, inhibit, intercept, interfere,
   interfere with, intermeddle, intermit, intervene, intrude,
   keep back, keep in check, meddle, oppose, postpone, punctuate,
   put in, repress, resist, restrain, retard, scotch, set back,
   slacken, snap the thread, snub, speak inopportunely,
   speak too late, stall, stay, stop, suppress, suspend, take a break,
   terminate