Blancher
Blancher (blȧnch"ẽe) , noun
One who, or that which, blanches or whitens; esp., one who anneals and cleanses money; also, a chemical preparation for this purpose.
Blancher , noun
One who, or that which, frightens away or turns aside. [Obsolete]
And Gynecia, a blancher, which kept the dearest deer from her.
And so even now hath he divers blanchers belonging to the market, to let and stop the light of the gospel.