ἐστόν (eston)
ἐστόν is an Ancient Greek form of εἰμί, meaning “to be, exist”. It is the 2nd person dual present active indicative.
Found 71 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 3.112.1: οἱ δ’ ἐκ τῆς πόλεως Ἀμπρακιῶται ἀφικνοῦνται ἐπ᾽ Ἰδομενήν. ἐστὸν δὲ δύο λόφω ἡ Ἰδομενὴ ὑψηλώ· τούτοιν τὸν μὲν μείζω νυκτὸς ἐπιγενομένης οἱ προαποσταλέντες ὑπὸ τοῦ Δημοσθένους …
Theocritus, Εἰδύλλια 22.170: πείθεσθʼ· ἄμφω δʼ ἄμμιν ἀνεψιὼ ἐκ πατρὸς ἐστόν.
Euripides, Iphigenia in Tauris 497: πότερον ἀδελφὼ μητρός ἐστον ἐκ μιᾶς;
All forms of εἰμί (conjugation 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.