Persas
Persas is a Latin form of Perses, meaning “a Persian; (Perseus, Perses) last king of Macedon”. It is the accusative plural masculine noun.
It can also be a form of permulceo, “stroke, caress; soothe, charm”. It is the perfect passive participle accusative plural feminine.
Found 92 times in the Latin texts on Socratos.
Where it is used
Cicero, In C. Verrem 2.5.166: … sse suspicabare; non quaero qua suspicione, tua te accuso oratione: civem Romanum se esse dicebat. si tu apud Persas aut in extrema India deprensus, Verres, ad supplicium ducerere, quid aliud clamitares nisi te civem esse Roma …
Livy, Ab urbe condita 9.19.5: ipse traiecisset mare cum veteranis Macedonibus, non plus triginta milibus hominum et quattuor milibus equitum, maxime Thessalorum; hoc enim roboris erat. persas Indos aliasque si adiunxisset gentes, impedimentum maius quam auxilium traheret.
All forms of Perses (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.