Meaning

noun primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue

originFrom Middle English laumprei, from Old French lampreie (modern French lamproie), from Medieval Latin lampreda, possibly alteration of Late Latin lampetra (“lamprey”), whose further origin is unknown, though it is traditionally thought to be a combination of lambō (“to lick, lap”) + petra (“stone, rock”). Doublet of limpet, which derives from Latin.

Etymology from Wiktionary, CC BY-SA 3.0