ウ音便

Japanese

Kanji in this term
音	便
おん Grade: 1	びん Grade: 4
goon	kan'yōon

Alternative spelling
う音便

Examples

ありがたく (arigataku) → ありがたう (arigatau) → ありがとう (arigatō)
とひて (tofite) → とうて (tōte)
いも_甲ひ_甲と_乙 (imo₁pi₁to₂) → いもうと (imōto)
せひ_甲と_乙 (sepi₁to₂) → せうと (seuto) → しょうと (shōto)
ひ_甲むか (Pi₁muka) → ひうが (Fiuga) → ひゅうが (Hyūga)

Etymology

ウ (u) +‎ 音便 (onbin, “euphony”)

Pronunciation

(Tokyo) ウおんびん [ùóꜜǹbìǹ] (Nakadaka – [2])
IPA^(key): [ɯ̟õ̞mbʲĩɴ]

Noun

ウ音(おん)便(びん) • (u-onbin)

(phonology, grammar) a form of euphony whereby certain historical morae became う (u)
Coordinate terms: イ音便, 促音便, 撥音便

Usage notes

Tokyo Japanese tends to favor 促音便 (sokuonbin) (e.g. 言って (itte)), while Kansai Japanese tends to favor ウ音便 (u-onbin) (e.g. 言うて (yūte)).

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