δεῖσθαι (deisthai)

δεῖσθαι is an Ancient Greek form of δέω, meaning “lack, need; (mid.) need, ask for”. It is the present middle/passive infinitive.

It can also be a form of δέομαι, “need, ask for, beg (gen.)”.

Found 378 times in the Ancient Greek texts on Socratos.

Where it is used

Thucydides, History of the Peloponnesian War 1.32.5: … μει περιγενέσθαι, καὶ ἅμα μέγας ὁ κίνδυνος εἰ ἐσόμεθα ὑπ’ αὐτοῖς, ἀνάγκη καὶ ὑμῶν καὶ ἄλλου παντὸς ἐπικουρίας δεῖσθαι, καὶ ξυγγνώμη εἰ μὴ μετὰ κακίας, δόξης δὲ μᾶλλον ἁμαρτίᾳ τῇ πρότερον ἀπραγμοσύνῃ ἐναντία τολμῶμεν.

Plutarch, Quaestiones Convivales 7.6.3·3: … ισμένος καὶ τιμᾶν, ἐπάγεται, παραιτητέος εὐθύς. εἰ δὲ φίλος καὶ συνήθης, οὐκ εὐθὺς ὑπακουστέον· ἀλλʼ ἐὰν δοκῇ δεῖσθαί τινος ἀναγκαίας ὁμιλίας καὶ κοινωνίας καιρὸν ἄλλον οὐκ ἐχούσης, ἢ διὰ χρόνου ποθὲν ἀφιγμένος ἢ μέλλων ἀπαίρει …

Julian, Emperor of Rome, The Caesars 34: … σοι τοῦτο, εἶπε, τυχὸν οὐκ ἀτόπως, ἐμοὶ δέ, ἔφη, φράσον, τί ποτε ἐνόμιζες εἶναι τὴν τῶν θεῶν μίμησιν; καὶ ὅς, Δεῖσθαι μὲν ὡς ἐλαχίστων, εὖ ποιεῖν δὲ ὡς ὅ, τι μάλιστα πλείστους. Μῶν οὖν, εἶπεν, οὐδενὸς ἐδέου; καὶ ὁ Μάρκος, Ἐγὼ μ …

All forms of δέω (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.