expression
late in autumn; late in fall
Fixed literary expression used to describe the deepening of autumn, often in poetic or descriptive contexts.
秋更けて、山々が紅葉に染まった。
Late in autumn, the mountains were dyed in autumn colors.
秋更けて、夜風が冷たく感じられるようになった。
As autumn deepened, the night breeze began to feel chilly.