Μεσσηνίων (Messenion)
Μεσσηνίων is an Ancient Greek form of Μεσσήνιος, meaning “Messenios — a Messenian”. It is the genitive plural masculine noun.
Found 194 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.101.2: … ὶ τῶν περιοίκων Θουριᾶταί τε καὶ Αἰθαιῆς ἐς Ἰθώμην ἀπέστησαν. πλεῖστοι δὲ τῶν Εἱλώτων ἐγένοντο οἱ τῶν παλαιῶν Μεσσηνίων τότε δουλωθέντων ἀπόγονοι· ᾗ καὶ Μεσσήνιοι ἐκλήθησαν οἱ πάντες.
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.