What does "underrun" mean?

A condition in which fewer products are delivered or produced than had been ordered.

Underrun

noun, verb

noun, verb ·Rare ·Advanced level

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.
"He spoke fast, with the uneasy tone that so often underran his words."
2
haul onto a boat wordnet
3
To pass along and under, e.g. a cable, for the purpose of taking it in or examining it.
4
run or pass below wordnet
5
To separate the parts of (a tackle) and put them in order.

"He spoke fast, with the uneasy tone that so often underran his words."

From under- + run.