fuliginous

Definition

Dark, sooty, and gloomy—like something covered in ash or chimney smoke.

Pertaining to or resembling soot in such features as colour, texture or taste; sooty, dusky. .mw-parser-output .defdate{font-size:smaller}

Memory Hook

FUL-iginous sounds like 'full of grime'—imagine a fireplace covered in thick, dark soot.