πρώταις (protais)
πρώταις is an Ancient Greek form of πρῶτος, meaning “first”. It is the dative plural feminine adjective.
Found 47 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 3.85.1: οἱ μὲν οὖν κατὰ τὴν πόλιν Κερκυραῖοι τοιαύταις ὀργαῖς ταῖς πρώταις ἐς ἀλλήλους ἐχρήσαντο, καὶ ὁ Εὐρυμέδων καὶ οἱ Ἀθηναῖοι ἀπέπλευσαν ταῖς ναυσίν·
All forms of πρῶτος (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.