Achaeis

Achaeis is a Latin form of Achaeus, meaning “Achaean, Greek; (Achaei) the Achaeans, the Greeks”. It is the dative plural masculine noun or ablative plural feminine adjective or ablative plural masculine adjective or dative plural neuter adjective.

Found 69 times in the Latin texts on Socratos.

Where it is used

Ovid, Ex Ponto 4.10.27: nec potes infestis conferre Charybdin Achaeis,

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.