1. Osco-Umbrian - Noun
2. Osco-Umbrian - Adjective
a group of dead languages of ancient Italy; they were displace by Latin
Source: WordNetItalic includes the Latin subgroup (Latin and the Romance languages) as well as the ancient Italic languages (Faliscan, Osco-Umbrian and two unclassified Italic languages, Aequian and Vestinian ). Source: Internet