5. Figuratively, a worthless thing. And by the merit of vile gold, dross, dust. Shak.
6. Figuratively, a low or mean condition. [God] raiseth up the poor out of the dust. 1 Sam. ii. 8.
7. Gold dust; hence: (Slang)
Defn: Coined money; cash. Down with the dust, deposit the cash; pay down the money. [Slang] "My lord, quoth the king, presently deposit your hundred pounds in gold, or else no going hence all the days of your life. . . . The Abbot down with his dust, and glad he escaped so, returned to Reading." Fuller. — Dust brand (Bot.), a fungous plant (Ustilago Carbo); — called also smut. — Gold dust, fine particles of gold, such as are obtained in placer mining; — often used as money, being transferred by weight. — In dust and ashes. See under Ashes. — To bite the dust. See under Bite, v. t. — To raise, or kick up, dust, to make a commotion. [Colloq.] — To throw dust in one's eyes, to mislead; to deceive. [Colloq.]
DUST
Dust, v. t. [imp. & p. p. Dusted; p. pr. & vb. n. Dusting.]
1. To free from dust; to brush, wipe, or sweep away dust from; as, to dust a table or a floor.
2. To sprinkle with dust.
3. To reduce to a fine powder; to levigate. Sprat. To dyst one's jacket, to give one a flogging. [Slang.]
DUSTBRUSH
Dust"brush`, n.
Defn: A brush of feathers, bristles, or hair, for removing dust from furniture.