Explanation 5 · Three-Sound Harmony

Among the six final sounds ㄱ ㆁ ㄷ ㄴ ㅂ ㅁ (익  읻 인 입
    임) (iK iŋ iD iN iB iM), all are used in both Hanja and our
    native words. However, ㅅ ㄹ(잇 일) (iT iL) appear only in
    the final sounds of our words, such as 옷 OT meaning
    Clothes and 실 SiL meaning Thread.




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