The crossword solutions for the term MAKE BLACK are DENIGRATE (9 letters) and DARKEN (6 letters). DENIGRATE means to speak badly of someone or something, while DARKEN means to make something darker in color. Both words can be used to describe the action of making something black. DENIGRATE is a more negative term, as it implies that the person or thing being made black is being insulted or degraded. DARKEN is a more neutral term, as it simply implies that the color of something is being changed.