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.
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.
Do not interrupt me in my course. --Shak.
2. To divide; to separate; to break the monotony of; as, the
evenness of the road was not interrupted by a single hill.