Hangul syllable Dulb

It is one Korean syllable block, not a complete word.

Hangul was created in 1443 and promulgated in 1446 to make Korean writing easier to learn. 둛 follows that system: its initial consonant ᄃ, vowel ᅮ, and final cluster ᆲ (ㄹ + ㅂ) are jamo, the component letters that combine in a syllable block.

Hangul grew from a new royal-era script into everyday Korean writing. Hanja, the use of Chinese characters in Korean writing, is a separate tradition; it did not supply this block's parts. 둛 is formed from Hangul's letters, not a separately invented emblem.

Why does 둛 sometimes split into jamo?

Unicode can store the same syllable as separate jamo.

The precomposed form 둛 can also be stored as ᄃ + ᅮ + ᆲ. Here, “jamo” means the component letters used to build Hangul syllable blocks; separating the stored sequence does not change the intended syllable.

Hangul shaping can still display those components as one block. Spacing and proportions vary by typeface, so a different-looking block does not mean a different syllable.