Origin of lethal
British Dictionary definitions for hyper-lethal
Word Origin for lethal
Word Origin and History for hyper-lethal
1580s, from Late Latin lethalis, alteration of Latin letalis "deadly, fatal," from letum "death," of uncertain origin. Form altered in Late Latin by association with lethe hydor "water of oblivion" in Hades in Greek mythology, from Greek lethe "forgetfulness."