abuse
asperse
attaint
bark at
becloud
bedarken
bedaub
bedim
begloom
begrime
berate
besmear
besmirch
besmoke
besmutch
besoil
bespatter
bestain
betongue
black
black out
blackwash
block the light
blot
blot out
blotch
blow upon
blur
brand
brown
call names
calumniate
cast a shadow
cast aspersions on
censure
charcoal
cloud
cloud over
cork
darken
darken over
daub
defame
defile
denigrate
color
colour
discolor
discolour
blackened
blackening
blackens
blacking
broken-off
char
half-burned
tattooing
Machen
bracken
slacken