Etymology From Scots dreg-boat, dreg-bot (from Old English *dreċġ); or alternatively from Middle Dutch dregghe (“drag-net”), probably ultimately from the same root as drag.
› Any instrument used to gather or take by…
1
A dragnet for taking up oysters, etc., from their beds.
2
A dredging machine.
The section includes also combination bucket and suction dredges, true suction dredgers, the Friihling dredge, the reclamation dredge, the longshoot dredge, the hopper barge, the self-propelling hopper, and the rock cutter.1923, Marine Engineer and Naval Architect - Volume 46, page 162:
3
An iron frame, with a fine net attached, used in collecting animals living at the bottom of the sea.
4
The act of dredging.
A dredge of the river is not possible at this time due to the strong currents and dangerous riptides which plague the St. Lawrence after the ice melts.2021, Suanne Laqueur, Here to Stay:
5
Very fine mineral matter held in suspension in water.
Etymology From Scots dreg-boat, dreg-bot (from Old English *dreċġ); or alternatively from Middle Dutch dregghe (“drag-net”), probably ultimately from the same root as drag.
1
To make a channel deeper or wider using a dredge.
2
To bring something to the surface with a dredge.
Subject to flooding by the six small rivers coming together just west of the city, the main river below the city has long been shallow and subject to silting. The Communists have both maintained the earlier pattern of dredging the river, and have built a bypass flood canal around the city on the south side to relieve flood pressures. Though dredging can keep the river navigable for small ships, a new artificial port, Sinkang, able to take 10,000 ton ships at all times, was created at T'ang-ku. This is kept open for about two months during winter by icebreakers.1972, “TIENTSIN (T'IEN-CHING)”, in Encyclopedia Britannica, volume 21, →ISBN, →LCCN, →OCLC, page 1140, column 1:
3
Usually, With "up" To unearth.
to dredge up someone's unsavoury past
Friday night’s crowning victory at The Hawthorns was the 25th in 30 league matches since Antonio Conte’s decisive re-gearing of his team in September, the tactical switches that have coaxed such a thrilling run from this team of bolt-ons and upcycled squad players, most notably Victor Moses, who was dredged out of the laundry bin in the autumn to become a key part of the title surge.2017 May 13, Barney Ronay, “Antonio Conte’s brilliance has turned Chelsea’s pop-up team into champions”, in The Guardian:
Etymology From Middle English dragge, from Old French dragee, dragie, from Latin tragēmata, from Ancient Greek τραγήματα (tragḗmata, “spices”), plural of τράγημα (trágēma, “dried fruit”).
1
Cooking, Food, Lifestyle A large shaker for sprinkling spices or seasonings during food preparation.
2
A mixture of oats and barley.
It is true that on the boulder clay of south Cambridgeshire they grew dredge, a mixture of oats and barley1991, Edward Miller, Joan Thirsk, The Agrarian History of England and Wales: Volume 3, 1348-1500:
dredge
verb
Etymology From Middle English dragge, from Old French dragee, dragie, from Latin tragēmata, from Ancient Greek τραγήματα (tragḗmata, “spices”), plural of τράγημα (trágēma, “dried fruit”).
1
Cooking, Food, Lifestyle To sprinkle (food) with spices or seasonings, using a dredge.
Dredge the meat with the flour mixture you prepared earlier.