Dictionary

To adorn, cover, or furnish with feathers or plumes, or as if with feathers or plumes.

Chiefly of a bird: to arrange and preen the feathers of, specifically in preparation for flight; hence , to prepare for (something).

(by extension) To congratulate (oneself) proudly, especially concerning something unimportant or when taking credit for another person's effort; to self-congratulate.

Example: He plumes himself on his skill.

To strip (a bird) of feathers; to pluck.

Having or decorated with a plume or plumes.