girasolyoudaoicibaDictYouDict[girasol 词源字典]
"A kind of opal reflecting a reddish glow", Late 16th century (in the sense 'sunflower'): from French, or from Italian girasole, from girare 'to turn' + sole 'sun' (because the sunflower turns to follow the path of the sun).[girasol etymology, girasol origin, 英语词源]