夜よが更ふける

expression, ichidan verb

the night deepens; the night wears on; night advances

Describes the progression of night into its later, quieter hours. Often used in literary or descriptive contexts.

See also: 夜更け

• 夜よが更ふけるにつれて、街まちは静しずかになった。

  As the night deepened, the town grew quiet.

• 夜よが更ふけても、彼かれはまだ仕し事ごとを続つづけていた。

  Even as the night wore on, he continued working.