-으오
-으오: …O — Old Polite Ending
Ending: …o — the old polite ending of formal speech.
How to form it
| When | Form | Example |
|---|---|---|
| Batchim stems | -으오 | 먹으오 / 있으오 |
| Vowel stems | -오 | 가오 / 하오 / 보오 |
-으오 (-오) is an old polite ending — 하오체 colour.
Not café -요. Not modern -습니다. Period formal speech.
Why this is hard
Politeness buttons multiply. Learners glue every polite end to -요. -으오 belongs to an older formal style still heard in drama, fiction, and playful archaic talk — and it sits near -소.
What it does
어디로 가오?
지금 무엇을 하오?
여기 있으오.
잘 보오.
The ending marks older polite address, not a new lexical meaning.
Forms
Batchim -으오; vowel -오.
먹다 → 먹으오
가다 → 가오
하다 → 하오
When not to use it
Do not use it as default modern polite — -요 / -습니다.
Do not invent it as slang decoration in every chat.
Do not confuse neighbouring -소 with this exact coat — related family, separate page.
Neighbours — and why they differ
| Form | Why it is not this slot |
|---|---|
| -요 | Living polite. |
| -습니다 | Modern formal. |
| -소 | Related old polite neighbour. |
Ask: do I want older formal polite colour? If yes, -으오. If living polite, stay with -요.
Do not confuse it with
Taught alongside this
On the jabi learning path, this appears in 종결어미 (final ending) — Advanced Korean 2, Unit 3, on the theme of final ending. These come with it:
Words used above
Quick check
No sign-up, no score saved — just see if it stuck.
1. A historical-drama character politely asks another adult where they are going. Which line deliberately uses the older 하오체 colour?


2. You are emailing a client today to say that the document is here. Which sentence is the normal modern formal choice?


3. Which form correctly follows the consonant-final stem 먹- in the older -으오 pattern taught on this page?


Common questions
Speech level?
하오체 / older formal polite — drama, historical writing, playful period talk.
Vs -요?
-요 is living polite. -으오 is period colour.
Vs 합니다?
-습니다 is modern formal. Different century feel.
Should I use it in email?
Usually no — unless you want theatrical old politeness.
Seen in the wild
Lessons where this pattern showed up in real Korean — news, slang, drama lines.