murk (n.)
- black
- blackwash
- blot
- blotch
- brown
- charcoal
- cloud
- cork
- dark
- darkness
- deadness
- dim
- dimness
- dinge
- drabness
- dullness
- dusk
- duskiness
- eclipse
- flatness
- fog
- fogginess
- foul
- fuzziness
- gloaming
- gloom
- grime
- half-light
- haze
- indeterminateness
- indistinctness
- ink
- lifelessness
- lusterlessness
- mat
- mist
- mistiness
- murkiness
- mystification
- obfuscation
- obscurantism
- obscurity
- occult
- opacity
- overcast
- perplexity
- shade
- shadow
- shapelessness
- smirch
- smoke
- smudge
- smut
- somberness
- soot
- tarnish
- twilight
- unclearness
- vagueness
murk (v.)
- becloud
- bedim
- begrime
- besmirch
- black
- blacken
- blackwash
- blot
- blotch
- brown
- charcoal
- cloud
- cork
- darken
- denigrate
- dim
- dinge
- dirty
- dusk
- ebonize
- eclipse
- fog
- foul
- grime
- haze
- ink
- mat
- melanize
- mist
- muddy
- obfuscate
- obnubilate
- obscure
- occult
- overcast
- overcloud
- overshadow
- shade
- shadow
- smirch
- smoke
- smudge
- smut
- smutch
- soot
- tarnish