The story
From mer- + snake. Compare Middle English mereneddre (“sea-snake, lamprey”), from Old English merenǣddra, merenǣddre, merenǣdre (“lamprey, sea snake”, literally “sea-adder”).
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A sea snake. Full definition →
From mer- + snake. Compare Middle English mereneddre (“sea-snake, lamprey”), from Old English merenǣddra, merenǣddre, merenǣdre (“lamprey, sea snake”, literally “sea-adder”).
Etymology from Wiktionary, CC BY-SA 4.0.