Why is “eleven” not called “oneteen”?

• English “eleven” and “twelve” come from Old English “endleofan” and “twelf.”

📜 History: “Endleofan” likely means “one left” (after counting ten), and “twelf” means “two left.” They predate the later adoption of the “-teen” suffix (from “ten”), which is why we say thirteen, fourteen… but not oneteen or twoteen.

🤔 Trivia: Many Germanic languages have unique names for 11 and 12 (e.g., German “elf” and “zwölf”), suggesting this number-naming quirk is very old and common across related languages.