stainer

An insect that causes stains, as the cotton-stainer.

One who or that which stains, blots, or tarnishes.

One who stains or colors; especially, in the trades, a workman whose employment is staining wood, etc. See paper-stainer.

A tincture or coloring matter used in staining.

One who stains or tarnishes.

A workman who stains.

Something that stains.

One who stains or tarnishes.

A workman who applies a stain to wood, etc.

a worker who stains (wood or fabric)