IPA: /ˌpɒlɪˈkrəʊmi/
KK: /pɑːlɪˈkrɒmi/
The practice of using multiple colors in art, especially in decoration for buildings and sculptures.
The ancient Greeks were known for their polychromy, which brought their sculptures to life with vibrant colors.
Polychromy → It is formed from "poly-" (meaning many) and "chroma" (from Greek χρῶμα, meaning color). The word refers to the practice of using many colors, especially in art and decoration.
Think of 'many' ('poly-') colors ('chroma') being used together — that's what polychromy means.
No commonly confused words.