τοῖν (toin)
τοῖν is an Ancient Greek form of ὁ, meaning “the; (Hom.) he, she, it; this, that”. It is the genitive dual masculine article.
Found 286 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 5.29.2: … ἄλλοις τε καὶ ὅτι ἐν ταῖς σπονδαῖς ταῖς Ἀττικαῖς ἐγέγραπτο εὔορκον εἶναι προσθεῖναι καὶ ἀφελεῖν ὅτι ἂν ἀμφοῖν τοῖν πολέοιν δοκῇ, Λακεδαιμονίοις καὶ Ἀθηναίοις.
Plutarch, Vitae decem oratorum 1.1·4: … τον, καὶ τὼ οἰκία κατασκάψαι αὐτῶν καὶ ὅρους θεῖναι τοῖν οἰκοπέδοιν, ἐπιγράψαντας ΑΡΧΕΠΤΟΛΕΜΟΥ ΚΑΙ ΑΝΤΙΦΩΝΤΟΣ ΤΟΙΝ ΠΡΟΔΟΝΤΟΙΝ. τὼ δὲ δημάρχω ἀποφῆναι τὴν οὐσίαν αὐτοῖν καὶ μὴ ἐξεῖναι θάψαι Ἀρχεπτόλεμον καὶ Ἀντιφῶντα Ἀθήνησι, …
All forms of ὁ (declension table)
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.