The story
Coined by American journalist and editor Sylvia Wright in 1954 in Harper's Magazine from mishearing a line in the Scottish ballad The Bonnie Earl o' Moray: “They have slain the Earl o' Moray, / And laid him on the green”, the second line being misheard as, “And Lady Mondegreen”.
First known use, by meaning
- from 1954 A form of (possibly intentional) error arising from mishearing a spoken or sung phrase, possibly in a different language.
Etymology from Wiktionary, CC BY-SA 4.0.