IPA: /dɪˈkʌlər/
KK: /dɪˈkʌlər/
To remove color from something, often making it lighter or white.
The artist decided to decolor the canvas to create a softer background for her painting.
Past: decolored
Past Participle: decolored
Decolor is formed from "de-" (meaning down or away) and "color" (from Latin "color", meaning hue or appearance). The word describes the act of removing color or fading it away.
Think of 'removing' ('de-') 'color' — that's why decolor means to take away color.