Opera del Vocabolario Italiano (ARTFL)Allows keyword searching in 1960 vernacular texts (22.3 million words, 456,000 unique forms) the majority of which are dated prior to 1375, the year of Boccaccio's death. The verse and prose works include early masters of Italian literature like Dante, Petrarch, and Boccaccio, as well as lesser-known and obscure texts by poets, merchants, and medieval chroniclers.
The OVI database was created to aid in the compilation of an historical dictionary of the Italian language, the Tesoro della lingua italiana delle origini.