ἐξουσίαν (exousian)
ἐξουσίαν is an Ancient Greek form of ἐξουσία, meaning “power, authority, license”. It is the accusative singular feminine noun.
Found 686 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 4.39.2: τούτων περὶ εἴκοσιν ἡμέρας, ἐν αἷς οἱ πρέσβεις περὶ τῶν σπονδῶν ἀπῇσαν, ἐσιτοδοτοῦντο, τὰς δὲ ἄλλας τοῖς ἐσπλέουσι λάθρᾳ διετρέφοντο. καὶ ἦν σῖτός τις ἐν τῇ νήσῳ καὶ ἄλλα βρώματα ἐγκατελήφθη· ὁ γὰρ ἄρχων Ἐπιτάδας ἐνδεεστέρως ἑκάστῳ παρεῖχεν ἢ πρὸς τὴν ἐξουσίαν.
All forms of ἐξουσία (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.