Artificial intelligent assistant

plumassery

pluˈmassery Obs. rare—0.
  [a. OF. plumasserie ornament of feathers (Godef.), f. plumasse: see prec., and cf. next.]

1656 Blount Glossogr., Plumassery, a plume or bunch of feathers. [So 1775 in Ash; and in subseq. Dictionaries.]

Oxford English Dictionary

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