6 letters · 13 points in Scrabble
noun chromatic purity: freedom from dilution with white and hence vivid in hue
originEtymology tree Proto-Hellenic *kʰrṓwmə Ancient Greek χρῶμα (khrôma)bor. English chroma Borrowed from Ancient Greek χρῶμα (khrôma, “color”).
Etymology from Wiktionary, CC BY-SA 3.0