Could you please double-check the spelling or provide more context? Perhaps you were looking for:
* "Areumdaun": This is a Korean word meaning "beautiful" or "pretty".
* "Areumdawo": This is the adjective form of "areumdaun".
* "Areumdawoyo": This is a possible misspelling of "Areumdawoyo", which would mean "It's beautiful".
If you can provide more details about where you encountered this word, I might be able to help you figure out what it means.