doust

Dust.

To extinguish, to destroy, to kill.

[...] the Duke of Dorset charged in the list with "not known, but supposed forty thousand per year" (charitable supposition) had when formerly in office only about 3 or £4,000, and has not now, nor when the black list was printed, any office whatever -- (Much tumult, and cries of "shame" and "doust the liars")

Fussel, E.F. (1867), Medical Times and Gazette, page 420: “"[...] I wished the above system of drainage to be carried out, but I met with this response from an official, in many matters a man entitled to the greatest consideration:- "I found that sort of thing at a house the other day, and I soon dousted it."”

To dust.

To separate dust from ore.

Lock, Charles George Warnford (1895), Economic mining: a practical handbook for the miner, the metallurgist and the merchant: “The ore is first cobbed and classed into (a) prile, (b) best dredge, and (c) crusher dredge; a is finished product; c is crushed, jigged, and huddled; b is dousted, or, after reducing in rolls to 8-mesh, dry-sifted in fine mesh hand sieves.”

A surname.