Etymology

First attested in the Seokbo sangjeol (釋譜詳節 / 석보상절), 1447, as 엇던 (Yale: esten). From 어떻다 (eotteota, “to be how/what”).

Pronunciation

• IPA^(key): /ʌ̹t͈ʌ̹n/
• Phonetic hangeul: 어떤