κοιναῖς (koinais)
κοιναῖς is an Ancient Greek form of κοινός, meaning “common, shared”. It is the dative plural feminine adjective.
Found 45 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.25.4: οὔτε γὰρ ἐν πανηγύρεσι ταῖς κοιναῖς διδόντες γέρα τὰ νομιζόμενα οὔτε Κορινθίῳ ἀνδρὶ προκαταρχόμενοι τῶν ἱερῶν ὥσπερ αἱ ἄλλαι ἀποικίαι, περιφρονοῦ …
All forms of κοινός (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.