Yōon
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The yō-on (Japanese: 拗音 (ようおん)), also written as yōon, is a feature of the Japanese language in which a mora is formed with an added [j] sound, i.e., palatalized,[1] or (more rarely in the modern language) with an added [w] sound, i.e. labialized.
Yōon are represented in hiragana using a kana ending in i, such as き (ki) or に (ni), plus a smaller version of one of the three y kana, ya, yu or yo. For example, kyō, "today" (今日), is written きょう [kʲoo], using a small version of the yo kana, よ. Contrast this with kiyō, "skillful" (器用), which is written きよう [kijoo], with a full-sized yo kana. In historical kana orthography, yōon were not distinguished with the smaller kana, and had to be determined by context.
In earlier stages of Japanese, and in certain dialects, yōon can also be formed with the kana wa, wi, we, and wo; for example, くゎ/クヮ kwa, くゐ/クヰ kwi, くゑ/クヱ kwe, くを/クヲ kwo[
Table
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labialized k | くゎ kwa | (くゐ)kwi | (くゑ)kwe |
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labialized g | ぐゎ gwa | (ぐゐ)gwi | (ぐゑ)gwe |
Other representations
Braille | |||
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Yōon | Yōon + Dakuten |
Yōon + Handakuten |
-w- |
In Japanese Braille, Yōon is indicated with one of the yōon, yōon+dakuten, or yōon+handakuten prefixes.
Unlike in kana, Braille yōon is prefixed to the -a/-u/-o syllables, rather than appending ya, yu or yo to an -i kana, e.g. kyu: きゅ - ki + yu → ⠈⠩ - yōon + ku. Likewise, the -w- syllables are indicated by a prefix of the -a/-i/-e/-o syllables, rather than an -u syllable, e.g. くぁ / くゎ (kwa) = -w- + ka: ⠢⠡.
References
- ISBN 978-1614512523.