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]