降ふり積つもる

godan verb (-ru), intransitive verb

to fall and pile up; to lie thick

Used for snow, leaves, or other light material that falls and accumulates. Often describes a scene where something has built up over time.

• 昨さく夜やの雪ゆきが庭にわに降ふり積つもった。

  Last night's snow fell and piled up in the garden.

• 落おち葉ばが道みちに降ふり積つもっている。

  Fallen leaves lie thick on the road.