Withholder

with·hold  (wth-hld, w-)

v. with·held (-hld), with·hold·ing, with·holds

v.tr.

1. To keep in check; restrain.

2. To refrain from giving, granting, or permitting. See Synonyms at keep.

3. To deduct (withholding tax) from an employee's salary.

v.intr.

To refrain or forbear.

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[Middle English witholden : with, away from; see with + holden, to hold; see hold¹.]

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with·holder n.

Thesaurus

Noun	1.	withholder - a person who refrains from granting; "a withholder of payments" individual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do" granter - a person who grants or gives something
	2.	withholder - a person who restrains or checks or holds back controller, restrainer - a person who directs and restrains