dag

noun · Middle English

A perfectly blunt little word for the sort of weather that refuses to show any ambition.

A fine, misty, or drizzling rain that hangs persistently in the air.

In the wild

“The valley was completely obscured by a thick, persistent dag that soaked us to the bone.”

Origin

Derived from the Middle English dagge, potentially of Scandinavian root, relating to damp or moisture.