“Ashen remains darken the walls just above the sconces.”

“The tonnes of fine dust thrown up into the upper atmosphere would darken the skies for months.”

“Funerals would always serve to darken my mood and make me miserable no matter what relation I was to the deceased.”

“Whom It quickens, let them darkle to extinction swift and sure.”

“The two streams are known as blackwater creeks because tannin, released from the breakdown of leaves in the woods, darkens their waters.”

“By little and little, the surface of the plate takes a yellow tint, which darkens more and more, approaching to bistre.”

“But the poet's vision darkens apocalyptically in The Lice, which seems written under the shadow of planetary extinction.”