zucchetto (n.)youdaoicibaDictYouDict[zucchetto 词源字典]
small, round skull-cap worn by dignitaries in the Catholic Church, 1853, from Italian zucchetta "a cap," originally diminutive of zucca "gourd, head," perhaps from Late Latin cucutia, of unknown origin.[zucchetto etymology, zucchetto origin, 英语词源]