chelydre

The story

1. Ancient Greek · derived fromχέλυδρος“amphibious serpent”
2. Latin · derived fromchelȳdrus“fetid water serpent”
3. Old French · derived fromchelidre
4. Middle English · inherited fromchelidre
5. English todaychelydre

From Middle English chelidre, chelyder, chelydre, from Old French chelidre, chelydre, from Latin chelȳdrus (“fetid water serpent”), from Ancient Greek χέλυδρος (khéludros, “amphibious serpent”), from χέλυς (khélus, “tortoise”) + ὕδρος (húdros, “water serpent”). Cognate of French chélydre.