limiter

Noun

 * 1) That which limits or confines.
 * 2)  A circuit that allows signals below a specified input threshold to pass unaffected while attenuating the peaks of stronger signals.
 * 3)  A friar who had a license to beg within certain bounds.
 * 1)  A friar who had a license to beg within certain bounds.

Etymology
From.

Verb

 * 1) to mark, to limit (to show a physical limit or boundary)
 * 2) to limit (to state a limit for)

Verb

 * 1) to limit