οἴεσθαι (oiesthai)
οἴεσθαι is an Ancient Greek form of οἴομαι, meaning “think, suppose, expect”. It is the present middle/passive infinitive.
Found 235 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.70.3: αὖθις δὲ οἱ μὲν καὶ παρὰ δύναμιν τολμηταὶ καὶ παρὰ γνώμην κινδυνευταὶ καὶ ἐν τοῖς δεινοῖς εὐέλπιδες· τὸ δὲ ὑμέτερον τῆς τε δυνάμεως ἐνδεᾶ πρᾶξαι τῆς τε γνώμης μηδὲ τοῖς βεβαίοις πιστεῦσαι τῶν τε δεινῶν μηδέποτε οἴεσθαι ἀπολυθήσεσθαι.
Plutarch, Demosthenes 30.4: πλὴν ὅτι Δημοχάρης ὁ τοῦ Δημοσθένους οἰκεῖος οἴεσθαί φησιν αὐτὸν οὐχ ὑπὸ φαρμάκου, θεῶν δὲ τιμῇ καὶ προνοίᾳ τῆς Μακεδόνων ὠμότητος ἐξαρπαγῆναι, συντόμως καταστρέψ …
All forms of οἴομαι (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.