Ἠλείους (Eleious)
Ἠλείους is an Ancient Greek form of Ἠλεῖος, meaning “Eleios — a man of Elis”. It is the accusative plural masculine noun.
Found 74 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.27.2: … ὲ μίαν καὶ Τροιζήνιοι δύο, Λευκάδιοι δὲ δέκα καὶ Ἀμπρακιῶται ὀκτώ. Θηβαίους δὲ χρήματα ᾔτησαν καὶ Φλειασίους, Ἠλείους δὲ ναῦς τε κενὰς καὶ χρήματα. αὐτῶν δὲ Κορινθίων νῆες παρεσκευάζοντο τριάκοντα καὶ τρισχίλιοι ὁπλῖται.
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.