Ἰονίῳ (Ionio)
Ἰονίῳ is an Ancient Greek form of Ἰόνιος, meaning “Ionios — Ionian”. It is the dative singular masculine adjective.
Found 27 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 6.13.1: … ἀντιχειροτονεῖν, καὶ ψηφίζεσθαι τοὺς μὲν Σικελιώτας οἷσπερ νῦν ὅροις χρωμένους πρὸς ἡμᾶς, οὐ μεμπτοῖς, τῷ τε Ἰονίῳ κόλπῳ παρὰ γῆν ἤν τις πλέῃ, καὶ τῷ Σικελικῷ διὰ πελάγους, τὰ αὑτῶν νεμομένους καθ’ αὑτοὺς καὶ ξυμφέρεσθαι·
All forms of Ἰόνιος (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.