Hangul syllable Yaec

Its parts are ㅇ, ㅒ and final ㅊ.

Hangul groups letters into compact blocks, usually one per syllable. 얯 starts with ㅇ, has the vowel ㅒ in the middle, and ends with ㅊ; a complete Korean word supplies the meaning.

Why was 얯 created?

Hangul blocks join letters to write one syllable at a time.

The block system that gives 얯 its form was devised at the Korean court in 1443 and explained in 1446 in Hunminjeongeum, a book introducing the new script.

Earlier, Korean writers used Chinese characters; Idu, Gugyeol and Hyangchal adapted those characters in different ways to represent Korean words, sounds or grammar. Hangul gave Korean speakers a more direct way to write their language. It spread through Buddhist and Confucian books, government and practical writing, and personal letters. It became Korea’s official national writing system in 1894. A unified proposal from 1933 underlies modern Korean spelling. South Korea generally calls the script Hangul; North Korea calls it Chosŏn'gŭl. Those shifts concern Hangul’s role and naming, not a new meaning for 얯.

How do I type 얯?

Enter ㅇ, ㅒ, then ㅊ with a Korean input method. On the standard Korean two-set Dubeolsik layout, press d, Shift+o, c; the input method joins the keystrokes into one block.

The final ㅊ matters: ㅇ + ㅒ alone forms 얘. Unicode 16.0 allows Hangul fonts to vary the components’ shape, size and placement without changing the character.