Ostra
Ostra, æ, f. , ville de lʼOmbrie : Inscr.
OSTRA
OSTRA(Ὄστρα: Eth. Ostranus), a town of Umbria, in the district once occupied by the Senones mentioned both by Pliny and Ptolemy (Plin. Nat. 3.14. s. 19; Ptol. 3.1.51), but of very uncertain site. [UMBRIA].
[E.H.B]Ostra
A town of Umbria (Ptol.iii. 1, 51).