Yu (kana)とは 意味・読み方・使い方

The following is a list of the kana orthography that focuses on ヨ ("yo") and ユ ("yu")発音を聞く 例文帳に追加

ヨ、ユ音に着目して表記例をまとめると、次のように分かれる。 - Wikipedia日英京都関連文書対訳コーパス

As the above shows, in "Kojiki," "Nihon Shoki" and "Manyoshu" the "ミ" ("mi") of ツクヨミ (Tsukuyomi)" follows the official kana orthography of this era, but "ヨ" ("yo") of ツクヨミ (Tsukuyomi)" comes with "甲" and "乙"-indicating that "ヨ" ("yo") was pronounced in two ways, and even that the sound was replaced with "ユ" ("yu").発音を聞く 例文帳に追加

以上のように、記紀万葉においてツクヨミの「ミ」はいずれもか行上代特殊仮名遣で一致しているが、ヨの甲乙は両方にまたがり、「ユ」の例すらある。 - Wikipedia日英京都関連文書対訳コーパス