Hangul Syllable Cyolp

No settled everyday word meaning is attached to 춆 by itself. Hangul was introduced in 1446 as an alphabetic system for Korean, alongside hanja (Chinese characters also used to write Korean). Its component letters, called jamo, combine into square syllable blocks; this explains how the character is built, not whether it is a familiar word.

The 1446 date belongs to Hangul as a writing system, not to this individual syllable.

How do I type 춆 on a Korean keyboard?

A Korean keyboard builds syllable blocks from jamo. Enter the component letters in a Korean input method, which combines them into one square block.

Unicode can store Korean text as separate jamo or as a precomposed syllable. They may display alike, but the stored sequences differ.