Meaning

noun conduit that carries a rapid flow of water controlled by a sluicegate

verb pour as if from a sluice

verb irrigate with water from a sluice

originFrom Middle English sluse, alteration of scluse, from Anglo-Norman escluse (“sluice, floodgate”), from Late Latin exclusa (“extrusion, gate”), from Latin exclūsus, form of exclūdō (“to shut out, to exclude”) (English exclude). Cognate to Dutch sluis.

Etymology from Wiktionary, CC BY-SA 3.0