Ichidan verbintransitive verb to get dark after sunset;to turn to dusk;to fade into twilight

Ichidan verbintransitive verb to decline (after a peak);to wane;to lose vigour

Ichidan verbintransitive verb colloquial to be lost in thought;to be in a pensive mood;to look melancholic

intransitive verb archaic to get dark after sunset;to turn to dusk;to fade into twilight

intransitive verb archaic to decline (after a peak);to wane;to lose vigour