blacken
- sense 1: make or become black; "The smoke blackened the ceiling"; "The ceiling blackened"
- blacken melanize melanise nigrify black
- discolor discolour colour color
- sense 2: burn slightly and superficially so as to affect color; "The cook blackened the chicken breast"; "The fire charred the ceiling above the mantelpiece"; "the flames scorched the ceiling"
- char blacken scorch