chromium (n.)youdaoicibaDictYouDict[chromium 词源字典]
metallic element, 1807, with metallic elemental suffix -ium + French chrome (Fourcroy and Haüy), from Greek chroma "color" (see chrome; also see chroma). So called for its colorful compounds. Related: Chromite.[chromium etymology, chromium origin, 英语词源]