Hangul Jongseong Rieul-Phieuph

It marks ㄿ as the final cluster of a Korean syllable.

Its history follows the Korean verb 읊다, “to recite poetry.” The older compound 입주리다 appears in 15th-century texts. The stem is written 잎- in an older form, passes through 읖- in the 16th century, then gains ㄹ before ㅍ in the 17th. Hangul was created in 1443; its explanatory book, Hunminjeongeum, appeared in 1446. The modern inventory of double finals was formalized in 1933.

ᆵ has no separate symbolic meaning: it preserves the ㄿ spelling as the final part of a compact Hangul syllable block.

How do I type ᆵ?

A Korean IME produces 읊; a character picker inserts ᆵ alone.

Enter ㅇ + ㅡ + ㄹ + ㅍ and the Korean input method composes them into 읊. Unicode calls ᆵ a trailing, or final, jamo; ordinary Korean input uses it inside a syllable block rather than leaving it isolated.

Why does ᆵ sound different?

What follows decides which part of ㄿ is heard.

Before a consonant or pause, ㄹ is silent and ㅍ is heard as a final ㅂ; 읊다 is pronounced 읍따. Before a vowel, ㅍ starts the next syllable: 읊어 is pronounced 을퍼, and 읊은 is 을픈.

The spelling stays ㄿ while its spoken parts shift across syllables.