Hangul Syllable Jjyeh

No; it contributes sound inside a Korean word.

쪻 is formed from the initial Hangul jamo ᄍ, the vowel ᅨ, and the final jamo ᇂ. Jamo are the basic consonant and vowel signs of the Korean writing system; Hangul arranges them into square syllable blocks. Here, those sounds combine inside a word, while the word—not this block alone—supplies the meaning.

The Annals of King Sejong, a royal chronicle, first mention Hunminjeongeum in 1443. The 1446 Hunminjeongeum, a guide to the new script, explains its design as a writing system intended to make literacy easier. Hangul faced resistance and limited official use before spreading into everyday writing; by 1928, Hangeul was widely used as the script's name. Chinese characters were part of Korea's earlier writing history, but 쪻 is assembled from Hangul jamo rather than descended from a Chinese character.

How do I type 쪻 on a Korean keyboard?

Use Korean 2-set input, entering ㅉ, ㅖ, then ㅎ.

On Korean 2-set input, enter the initial consonant ㅉ, then the vowel ㅖ, then the final consonant ㅎ; the first two use Shift. The input method assembles all three into one block.

In decomposed text, 쪻 can appear as 쪻: the conjoining forms of its three jamo, which fit together into a block. Unicode normalization, a standard text-processing step, can join that sequence into 쪻. A font may place the signs differently or change their shape and size, so the text can look split or altered even though it represents the same syllable.