Umbrian
Latin word, found 49 times in the texts on Socratos.
Vergil, Aeneid 7.752: Archippi regis missu, fortissimus Umbro,
Ovid, Ars Amatoria 3.303: Illa velut coniunx Umbri rubicunda mariti
Seneca the Younger, Thyestes 498: loro tenetur Vmber ac presso vias