Epirum

Epirum is a Latin form of Epirus, meaning “Epirus, region of NW Greece”. It is the genitive plural feminine noun or accusative singular feminine noun.

Found 56 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Civili 3.42: … ora a Pompeianis tenebantur, classesque ipsius, quas hieme in Sicilia, Gallia, Italia fecerat, morabantur, in Epirum rei frumentariae causa Q. Tillium et L. Canuleium legatum misit, quodque hae regiones aberant longius, locis …

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.