Della CruscayoudaoicibaDictYouDict[Della Crusca 词源字典]
1796, from Italian Accademia della Crusca, literally "Academy of the Chaff," "the name of an Academy established at Florence in 1582, mainly with the object of sifting and purifying the Italian language; whence its name, and its emblem, a sieve" [OED].[Della Crusca etymology, Della Crusca origin, 英语词源]
Della RobbiayoudaoicibaDictYouDict
1787, from name of a family of 15c. Florentine painters and sculptors; used of wares made by Luca Della Robbia (1400-1482), or those like them.
Della CruscanyoudaoicibaDictYouDict
"Relating to or denoting a late 18th-century school of English poets with an artificial style modelled on that of purist Italian writers", Named after the Academy della Crusca in Florence (from Italian della Crusca 'of the bran', with reference to ‘sifting’ of the language).