Meaning

noun a power shovel to remove material from a channel or riverbed

verb cover before cooking

verb search (as the bottom of a body of water) for something valuable or lost

originFrom Middle English dragge, from Old French dragee, dragie, from Latin tragēmata, from Ancient Greek τραγήματα (tragḗmata, “spices”), plural of τράγημα (trágēma, “dried fruit”).

Etymology from Wiktionary, CC BY-SA 3.0