Hangul syllable dyoh

둏 is the older spelling at the start of 둏다.

둏다 is an old Korean form of 좋다. It appears in 15th-century Korean texts and survives into the 19th century. As an adjective it meant “good”; as a verb, it could mean “become better” or “recover.”

Hangul was devised to write Korean speech more directly than Chinese characters could. Its first documented record dates to 1443; a guide to the script called Hunminjeongeum was completed in 1446.

Should I use 둏 in modern Korean?

Use 좋다 for modern Korean; reserve 둏 for history.

The spelling changed through 둏다 → 죻다 → 좋다: 죻다 appears in the 18th–19th centuries, while 좋다 continues from the 19th century onward.

The verb sense “become better” or “recover” had disappeared by the 19th century. In an old sentence, surrounding words may be needed to distinguish it from the adjective “good.”