εἴησαν (eiesan)
εἴησαν is an Ancient Greek form of εἰμί, meaning “to be, exist”. It is the 3rd person plural present active optative.
Found 65 times in the Ancient Greek texts on Socratos.
Where it is used
Diogenes Laertius, Vitae philosophorum 9.7.34: … αὐτοῦ νεώτερος τετταράκοντα. Φαβωρῖνος δέ φησιν ἐν Παντοδαπῇ ἱστορίᾳ λέγειν Δημόκριτον περὶ Ἀναξαγόρου ὡς οὐκ εἴησαν αὐτοῦ αἱ δόξαι αἵ τε περὶ ἡλίου καὶ σελήνης, ἀλλὰ ἀρχαῖαι, τὸν δʼ ὑφῃρῆσθαι.
Plato, Epinomis 975: … , ὡς ὁ μῦθός ἐστιν, τὸ παράπαν ἀποστήσασα, τῶν δὲ εἰς τὴν νόμιμον ἐδωδὴν καταστήσασα. ἵλεῳ δʼ ἡμῖν οἱ πρόσθεν εἴησάν τε καὶ εἰσίν—οἵτινες μὲν γὰρ οὖν ἐλέγομεν, πρῶτοι χαιρέτωσαν—ἡ δʼ οὖν ἀλφίτων τε καὶ ἀλεύρων ποίησις ἅμα καὶ …
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.