Where does “や行” come from?

や行 (Japanese) comes from Japanese や, from Japanese じゃ, from Japanese である, from Japanese で, from Japanese ぜ, from Japanese ぞえ, from Japanese え, from Middle Chinese 衣.

や行 (Japanese): the eighth row of the 五十音図, consisting of the five kana や/ヤ, い/イ (alternatively, 𛀆/𛄠), ゆ/ユ, え/エ (alternatively, 𛀁/𛄡) and よ/ヨ, two of which are taken from the あ行 to represent classical grammatical inflection in modern text

Definitions

  1. the eighth row of the 五十音図, consisting of the five kana や/ヤ, い/イ (alternatively, 𛀆/𛄠), ゆ/ユ, え/エ (alternatively, 𛀁/𛄡) and よ/ヨ, two of which are taken from the あ行 to represent classical grammatical inflection in modern text

Ancestry of “や行”, step by step

や行 traces back through two separate lines of ancestry.

via Japanese や

StepLanguageWordMeaning
1Japaneseやand/or; is, are; Alternative form of いや
2Japaneseじゃso, then—used for connecting to a reasonable...
3JapaneseであるTo be: the copula, with the same function as だ and its polite form です
4Japaneseでat; with, by, using; indicating the following...
5Japaneseぜsentence-ending particle signifying emphasis,...
6Japaneseぞえ­ sentence-ending particle signifying emphasis, used to lightly press one's point, with affectionate overtones
7JapaneseえAlternative form of い
8Middle Chinese衣—

via Japanese 行

StepLanguageWordMeaning
1Japanese行a line of text; a row of a matrix; Abbreviation...
2Middle Chinese行—
Every word from Middle Chinese 衣 →Every word from Japanese え →Every word from Japanese ぞえ →