寝不足

Japanese

Kanji in this term
寝 不 足
ね
Grade: S
ふ > ぶ
Grade: 4
そく
Grade: 1
kun’yomi goon
Alternative spelling
寢不足 (kyūjitai)

Etymology

From 寝(ね) (ne, “sleep”) + 不(ふ)足(そく) (fusoku, “insufficient”, the fu changes to bu as an instance of rendaku (連濁)).

First attested in 1909.[1]

Pronunciation

Adjective

寝(ね)不(ぶ)足(そく) • (nebusoku) -na (adnominal 寝(ね)不(ぶ)足(そく)な (nebusoku na), adverbial 寝(ね)不(ぶ)足(そく)に (nebusoku ni))

  1. [from 1909] lacking sleep

Inflection

Noun

寝(ね)不(ぶ)足(そく) • (nebusoku) 

  1. lack of sleep

Synonyms

References

  1. “寝不足”, in 日本国語大辞典 (Nihon Kokugo Daijiten, “Nihon Kokugo Daijiten”)‎ (in Japanese), 2nd edition, Tōkyō: Shogakukan, 2000, →ISBN
  2. 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
  3. 1998, NHK日本語発音アクセント辞典 (NHK Japanese Pronunciation Accent Dictionary) (in Japanese), Tōkyō: NHK, →ISBN
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