"dealer in ornamental feathers," from French plumassier, from Middle French plumasse "plume of feather," from plume (see plume).
Online Etymology Dictionary, © 2010 Douglas Harper
Examples from the Web for plumassier
Among the earliest victims was the wife of the King's plumassier.
The "Anacreontic to a Plumassier" is a very delicate piece of verse, fluffy and feathery.Thomas Moore