underrun

Noun

 * 1)  A condition in which fewer products are delivered or produced than had been ordered.
 * 2)  A condition in which the read/write buffer is fed with data at a slower rate than required; a buffer underrun.

Verb

 * 1) To run or pass under.
 * 2)  To pass along and under, e.g. a cable, for the purpose of taking it in or examining it.
 * 3)  To separate the parts of (a tackle) and put them in order.
 * 1)  To separate the parts of (a tackle) and put them in order.