asperse
bedarken
besmirch
bespatter
black
blacken
blackwash
blot
blotch
call names
calumniate
charcoal
cork
darken
defame
defile
deprecate
depreciate
despise
dinge
discommend
disdain
disparage
dispraise
disvalue
ebonize
engage in personalities
heap dirt upon
hold in contempt
ink
libel
melanize
muckrake
murk
nigrify
oversmoke
put down
revile
ridicule
scandalize
shade
shadow
slander
smear
smirch
smoke
smudge
smut
smutch
denigrated
denigrates
denigrating