Hangul syllable Migg

It contributes one syllable to a Korean word, not a full message. Hangul writes syllables in blocks; 믺 combines ㅁ, ㅣ, and final ㄲ. The surrounding Korean spelling supplies the word's meaning. If someone sends 믺 alone, ask what word or phrase they intended.

Hangul's history is the relevant history here. Its first recorded notice under the name Hunminjeongeum appears in the Annals of King Sejong in 1443; an explanatory book followed in 1446. The book describes the letters and how they form syllable blocks. The system was made to represent Korean speech.

Before Hangul, Idu, Hyangchal, and Gugyeol used Chinese characters to represent Korean meanings, sounds, or grammar. These are earlier ways of writing Korean, not visual ancestors of this block.

How do I type 믺 on a Korean keyboard?

On Korean 2-set, type A, then L, then Shift+R. A Korean input method combines those keys as you type: A gives ㅁ, L gives ㅣ, and Shift+R gives ㄲ.

If a text field shows separate jamo (individual Hangul letters), it may be displaying the syllable in decomposed form. NFC is a Unicode normalization form that recomposes Hangul syllables when possible; NFD keeps their component letters separate. Whether those letters look joined also depends on the font and app.