.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important))You can help expand this article with text translated from the corresponding article in Japanese. (August 2021) Click [show] for important translation instructions. View a machine-translated version of the Japanese article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 3,779 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:わ行う]]; see its history for attribution. You should also add the template ((Translated|ja|わ行う)) to the talk page. For more guidance, see Wikipedia:Translation.
japanese hiragana wu
japanese katakana wu
hiragana origin汙/于
katakana origin
unicodeU+1B11F, U+1B122
This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: "Wu" kana – news · newspapers · books · scholar · JSTOR (December 2020)

Wu (hiragana: 𛄟, katakana: 𛄢) is a hentaigana, a variant kana or Japanese syllable.[1]


It is presumed that 𛄟 would have represented /β̞u/.[2][a] Along with 𛀆 and 𛀁 (yi and ye respectively), the syllable wu has no officially recognized kana, as these syllables do not occur in native Japanese words; however, during the Meiji period, linguists almost unanimously agreed on the kana for yi, ye, and wu. 𛀆 and wu are thought to have never occurred as syllables in Japanese, and 𛀁 was merged with え and エ.


In the Edo period and the Meiji period, some Japanese linguists tried to separate kana u and kana wu. The shapes of characters differed with each linguist. 𛄟 and 𛄢 were just two of many shapes.

They were phonetic symbols to fill in the blanks of the gojuon table. Japanese people didn't separate them in normal writing.

These suggestions weren't accepted.


This kana has been encoded into Unicode 14.0 since September 14, 2021 as HIRAGANA LETTER ARCHAIC WU (U+1B11F), and KATAKANA LETTER ARCHAIC WU (U+1B122).


  1. ^ /β̞/ corresponds to what is typically represented as /w/ in modern Japanese, which is still phonetically a bilabial approximant.


  1. ^ a b Iannacone, Jake (2020). "Reply to The Origin of Hiragana /wu/ 平仮名のわ行うの字源に対する新たな発見"
  2. ^ Gross, Abraham (2020-01-05), Proposal to Encode Missing Japanese Kana (PDF), p. 1
  3. ^ 綴字篇
  4. ^ 村山自彊; 中島幹事 (1891). 仮名遣. 開新堂. p. 19.
  5. ^ 音韻啓蒙 : 2巻. 上巻
  6. ^ 綴字篇
  7. ^ 音韻啓蒙 : 2巻. 上巻
  8. ^ 音韻啓蒙 : 2巻. 上巻
  9. ^ 日本新文典
  10. ^ 音韻啓蒙 : 2巻. 上巻
  11. ^ 綴字篇
  12. ^ 有賀長隣. 片仮名元字. p. 4.
  13. ^ 小学日本文典入門. 巻之1
  14. ^ 綴字篇
  15. ^ 綴字篇
  16. ^ 国語仮字つかい
  17. ^ 辞礎
  18. ^ 小学日本文典入門. 巻之1

See also