Umbrian language (Topical Term)
Work cat.: 2001054487: Buck, Carl Darling. A Vocabulary of Umbrian, 2001.
Oxford class. dict., 1996: p. 1080 (Oscan and Umbrian are the principal representatives of a group of closely related languages belonging to the Italic branch of Indo-European.)
Encyc. langs. and linguistics, 1994: v. 4, p. 1792 (The Umbrian language is known entirely from the texts inscribed in the Umbrian and Latin alphabets on the Tabulae Iguvinae ... discovered in 1444 at Gubbio)