Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb nigrify
1 sense of nigrify
Sense 1
blacken, melanize, melanise, nigrify, black -- (make or become black; "The smoke blackened the ceiling"; "The ceiling blackened")
=> discolor, discolour, colour, color -- (change color, often in an undesired manner; "The shirts discolored")