night, evening
夜 centers on the dark part of the day: night and evening, when the sun is gone and the world is quiet.
夜 combines 亠 (a person) with 夕 (evening) and 亻 (person), suggesting a person under the evening sky. The exact historical development is uncertain, but the components consistently point to nighttime.
The top 亠 is like a roof, and below it a person 亻 stands under the evening 夕 sky. Picture someone at home as night falls.
For ヤ, imagine a yak sleeping under the night sky: yak -> ヤ, and the yak rests in the evening.
night; evening
late at night
this evening; tonight
middle of the night; dead of night
night; nighttime
last night; yesterday evening
last night; yesterday evening
one night; all night; overnight; one evening
dawn; daybreak
night duty; night shift; night work
dead of night; midnight
staying up all night
night travel; walking around at night
day and night
night view; night skyline; nightscape
last night; the previous night
night sky
moonlit night
event held the night before another event; eve (of a festival) (e.g. Christmas Eve)
all-night vigil over a body; wake
day and night; around the clock; always; constantly
staying up late; sitting up late at night; keeping late hours
late at night; small hours of the morning
night school; evening school; evening class