Hangul Syllable Kulh

It is an encoded Hangul syllable block: ㅋ + ㅜ + ㅀ. The first part is the initial consonant, ㅋ; ㅜ is the vowel; ㅀ is the final consonant cluster. The ㅀ final cluster is called a compound final consonant (겹받침) in Korean spelling; it combines ㄹ and ㅎ. Unicode’s generated name, “Hangul Syllable Kulh,” labels this structure rather than translating a Korean word.

Unicode’s Hangul syllable block covers the full modern set of syllable combinations, called the Johab set. A precomposed block such as 쿯 can also be represented by an equivalent sequence of conjoining jamo, the letters that join into syllable blocks.

The final cluster ㅀ also appears in Korean word history. The Middle Korean form (an earlier stage of Korean) 긇다 is cited in a 1459 record as an earlier form of modern 끓다, the verb “to boil.” That connection belongs to ㅀ, not to the complete block 쿯.

How do I type 쿯?

On the standard South Korean two-set keyboard, press Z–N–F–G. These keys enter ㅋ, ㅜ, ㄹ, and ㅎ; the Korean input method (IME) combines final ㄹ + ㅎ into ㅀ. During composition, the block may pass through 쿠 and 쿨 before the last key completes it.

If the letters stay separate, check that Korean input is active. The keyboard layout supplies the keystrokes; the input method assembles them into a syllable block.

Why does 쿯 split into separate letters?

It may be stored as several characters that display as one syllable. Unicode allows a precomposed block or an equivalent sequence of conjoining jamo. Conjoining jamo are Hangul letters designed to join into syllable blocks; a font or text editor may display the decomposed sequence as one syllable.

The visible forms ㅋ, ㅜ, ㄹ, and ㅎ are compatibility jamo: standalone forms for showing the letters, distinct from the conjoining characters in a decomposed spelling. Fonts can also draw the same parts with different proportions or placement.