穹きゅう蒼そう

noun

dome of the sky; vault of heaven

Formal, literary term for the overarching sky or heavens, often with a poetic or classical feel. Rare in everyday speech.

• 穹きゅう蒼そうの星ほし々ぼしが静しずかに輝かがやいていた。

  The stars in the vault of heaven shone quietly.