σφετέρας (spheteras)
σφετέρας is an Ancient Greek form of σφέτερος, meaning “their own”. It is the genitive singular feminine adjective.
Found 113 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 2.3.4: … αλεωτέροις οὖσι προσφέροιντο καὶ σφίσιν ἐκ τοῦ ἴσου γίγνωνται, ἀλλ’ ἐν νυκτὶ φοβερώτεροι ὄντες ἥσσους ὦσι τῆς σφετέρας ἐμπειρίας τῆς κατὰ τὴν πόλιν. προσέβαλόν τε εὐθὺς καὶ ἐς χεῖρας ᾖσαν κατὰ τάχος.
All forms of σφέτερος (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.