exteras
exteras is a Latin form of exter, meaning “outer, foreign; (extremus) outermost, last, farthest, extreme”. It is the accusative plural feminine noun.
Found 27 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Civili 3.43: … prohiberet equitatumque eius ad rem gerendam inutilem efficeret, tertio, ut auctoritatem qua ille maxime apud exteras nationes niti videbatur, minueret, cum fama per orbem terrarum percrebuisset, illum a Caesare obsideri neque …
All forms of exter (declension table)
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.