寝入ねい
neiru

Godan Verb (ru)

1. to fall asleep

Intransitive
そのあかちゃんはつかれて寝入ねいった。
sono akachanwa nakitsukarete neitta.
The baby cried itself to sleep.
かれはやゆかいたが午前ごぜんちかくまで寝入ねいれなかった。
karewa hayaku yukani tsuitaga gozen niji chikakumade neirenakatta.
He went to bed early but did not go to sleep until almost 2 in the morning.
Godan Verb (ru)

2. to sleep soundly

Intransitive
Godan Verb (ru)

3. to become dull; to lose vigour; to slacken

Intransitive
Other forms: