voider
One who, or that which, voids, empties, vacates, or annuls.
A tray or basket formerly used to receive or convey that which is voided or cleared away from a given place; especially, one for carrying off the remains of a meal, as fragments of food; sometimes, a basket for containing household articles, as clothes, etc.
Peirs ploughman layd the cloth, and Simplicity brought in the voyder.
A contrivance in armour for covering an unprotected part of the body; a gousset.
historical
[…] amongst the stock of a Southwark armour-dealer in 1454 and worn-out haubergeons 'of westwale' at the Tower in 1455 were recycled into sleeves and voiders.
A servant whose business is to void, or clear away, a table after a meal.
historical, rare
The voider hauing cléered the table, Cardes & Dice (for the laſt Meſſe) are ſerued vp to the boord: […]
Where it comes from
From Middle English voider, equivalent to void + -er.
Adapted from the Wiktionary entry voider (CC BY-SA 4.0).