Obsolete Hangul jamo
Hangul jamo no longer used in modern Korean

The Korean alphabet, known as Hangul internationally, Hangeul in South Korea, and Choson'gŭl in North Korea, was introduced with 28 main letters, which are called jamo. Other extended vowels and consonants also existed or were later introduced but faded from use. Now, 24 main letters are in use for modern Korean.
A number of letters that became obsolete for Korean have previously and even currently seen use for other languages. For example, ㆍ is obsolete for Korean but used for the Jeju language.
Many obsolete letters and combinations are accounted for in Unicode.
Obsolete base letters
ㆁ ([ŋ]) is a consonant that represented an ng sound. It has a stroke on top, added from ㅇ, a null or zero initial. They were often confused, as they are so visually similar. In the 15th century, it was used as both as an initial and final consonant.
“Obsolete Hangul jamo” enters the record as hangul jamo no longer used in modern Korean. Crown Archives preserves that source wording while asking what Obsolete, Hangul and jamo can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 5, 2026. The linked authority identifier is Q15214915. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Obsolete Hangul jamo” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.