Dredge
late 15th century (as a noun; originally in dredge-boat ): perhaps related to Middle Dutch dregghe ‘grappling hook’.
wiktionary
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.
From Middle English dragge, from Old French dragee, dragie, from Latin tragēmata, from Ancient Greek τραγήματα(tragḗmata, “spices”), plural of τράγημα(trágēma, “dried fruit”).
etymonline
dredge (n.)
"instrument for bringing up or removing solid matter from under water by dragging the bottom," late 15c., in Scottish dreg-boat "boat for dredging," perhaps ultimately from root of drag (possibly via Middle Dutch dregghe "drag-net").
dredge (v.)
"to clear out with a dredge, gather with a dredge," also figurative, c. 1500 in Scottish, from dredge (n.). Related: Dredged; dredging.
