make dark

blot smudge

befoul begrime cloud deepen ebonize ink shade soil

grow dark grow dim

bleach compliment enhance lighten praise whiten

cross out cut off darken erase extinguish faint pass out

delete

batten conceal cover cover up eclipse eradicate go out like a light hold back keel over obfuscate quash rub out shade smother squash squelch stifle suppress swoon zonk out

add pencil in resuscitate revive uncover