Plume

Near-synonym: aigrette

Under a Coronet his flowing haire / In curles on either cheek plaid, wings he wore / Of many a colourd plume ſprinkl'd with Gold, / His habit fit for ſpeed ſuccinct, and held / Before his decent ſteps a Silver wand.

The firſt thing that ſtruck Manfred’s eyes was a groupe of his ſervants endeavouring to raiſe ſomething that appeared to him a mountain of ſable plumes. […] [W]hat a ſight for a father’s eyes!—he beheld his child daſhed to pieces, and almoſt buried under an enormous helmet, an hundred times more large than any caſque ever made for human being, and ſhaded with a proportionable quantity of black feathers.

[T]he most valuable cargo carried by the Titanic wasn't diamonds or gold but 12 cases of ostrich plumes valued at $2.3 million in today's money.

Leave no black plume as a token of that lie thy soul hath spoken!

The fearful infant turn'd his head away, / And on his nurſe's neck reclining lay, / His unknown father ſhunning with affright, / And looking back on ſo uncouth a ſight; / Daunted to ſee a face with ſteel o'er-ſpread, / And his high plume that nodded o'er his head.

But well thou comſt / Before thy fellows, ambitious to win / From me ſom Plume, that thy ſucceſs may ſhow / Deſtruction to the reſt: […]

Tidal gravitational effects cause plumes of sodium silicate to erupt from Elaaden's core, depositing unusually pure silicon sand across the surface—invaluable for manufacturing high-performance computer hardware.