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Webster 1913 Edition

Adj.

Covered or adorned with plumes, or as with plumes; feathery.

“His plumy crest.”

Addison.

“The plumy trees.”

J. S. Blackie.

Adj.

[from plume.] Feathered; covered with feathers.

Adorned with plumes; as a plumy crest.

plumy ‎(comparative plumier, superlative plumiest)

covered or adorned with plumes