διακοσίοις (diakosiois)
διακοσίοις is an Ancient Greek form of διακόσιοι, meaning “two hundred”. It is the dative plural masculine adjective.
Found 60 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 2.79.1: τοῦ δ’ αὐτοῦ θέρους καὶ ἅμα τῇ τῶν Πλαταιῶν ἐπιστρατείᾳ Ἀθηναῖοι δισχιλίοις ὁπλίταις ἑαυτῶν καὶ ἱππεῦσι διακοσίοις ἐπεστράτευσαν ἐπὶ Χαλκιδέας τοὺς ἐπὶ Θρᾴκης καὶ Βοττιαίους ἀκμάζοντος τοῦ σίτου· ἐστρατήγει δὲ Ξενοφῶν ὁ Εὐριπίδου τρίτος αὐτός.
All forms of διακόσιοι (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.