Hangul syllable 꾩

Its generated label names the parts, not a word meaning.

Hangul groups Korean consonant and vowel letters into syllable blocks. In 꾩, ㄲ is the starting consonant, ㅛ is the vowel, and ㄾ is the ending cluster. These individual letters are called jamo; their combination shows how the syllable is spelled, not what a Korean word means.

Hangul’s announcement is recorded in Joseon, the Korean kingdom of the time, in 1443; a guide titled 훈민정음 was published in 1446. It explained a writing system designed to make Korean easier to write with letters suited to its sounds, instead of relying on Chinese characters. Those dates belong to Hangul as a writing system, not to this individual block.

How do I type 꾩?

Use a Korean input method that supports the ending cluster ㄾ. With a suitable Korean keyboard, enter ㄲ, then ㅛ, then ㄾ; support for this uncommon ending varies.

The same syllable can also be stored as the joining letters ᄁ + ᅭ + ᆴ. Software that composes Hangul syllables can combine them for display. If the letters stay separate, the input method has not composed the block; if a square appears, the font may lack the glyph.