Hangul Jungseong Araea-Eo

It is an archaic Hangul vowel jamo.

Hangul is the Korean alphabet; a jamo is a letter component that combines with others in a syllable block. ᆟ sits in the vowel position in old Hangul. Unicode describes it as a compound connecting ᆞ and ㅓ, two Hangul vowel elements.

By itself, ᆟ is an incomplete fragment of historical or dialectal spelling. Read it with the surrounding syllable and word; alone, it does not supply a complete word or reading.

Why was this vowel made?

It let Hangul spell Korean syllables more precisely.

Hangul was developed in 1443 and proclaimed in 1446 as a writing system better suited to Korean than Chinese characters and mixed writing. It builds each syllable from initial, medial, and final parts, with compound vowels in the middle; ᆟ belongs to that system.

Middle Korean used the araea vowel family, which standard Korean no longer uses. A 2020 corpus study describes Jejueo as retaining araea; this finding concerns that vowel family, not proof that Jejueo uses ᆟ itself.

How do I type ᆟ?

Use an Old Hangul input method or character map.

The standard Korean keyboard has no dedicated key for ᆟ. To display it with other jamo as a syllable, use a font and text shaper that support old Hangul; otherwise it may be missing, detached, or oddly spaced.