如にょ法ほう暗あん夜や

noun

total darkness; utter darkness

A literary yojijukugo meaning pitch-black darkness, as dark as a moonless night. Rare in modern conversation; mostly encountered in classical or poetic contexts.

• 洞どう窟くつの中なかは如にょ法ほう暗あん夜やで、一いっ歩ぽも先さきが見みえなかった。

  Inside the cave it was pitch-dark, and I couldn't see a step ahead.