grow dim

blot smudge

befoul begrime cloud deepen ebonize ink shade soil

grow dark make dark

bleach compliment enhance lighten praise whiten

dim disappear dissolve dull evaporate vanish

achromatize blanch bleach blench clear decolorize discolor etiolate muddy neutralize pale tarnish

become colorless evanish lose brightness lose luster tone down wash out

brighten darken

color sharpen strengthen