τηρεῖν (terein)
τηρεῖν is an Ancient Greek form of τηρέω, meaning “watch over, guard, keep”. It is the present active infinitive.
Found 135 times in the Ancient Greek texts on Socratos.
Where it is used
Diogenes Laertius, Vitae philosophorum 2.17.131: … καὶ καθαπτομένου εἰς τὸ ὅτι πολιτεύεται, ἐκέλευσέ τισιν εἰς τὸ δεσμωτήριον αὐτὸν ἐμβαλεῖν· τὸν δὲ μηδὲν ἧττον τηρεῖν παριόντα καὶ ὑπερκύπτοντα Ἀγαμεμνόνειόν τε καὶ Ἡγησίπολιν ἀποκαλεῖν.
Julian, Emperor of Rome, Κατὰ Γαλιλαίων 62: … φασὶ περιτεμνόμεθα. πάνυ γε· οὐδεὶς γὰρ παρ’ ὑμῖν κακοῦργος, οὐδεὶς μοχθηρός· οὕτω περιτέμνεσθε τὰς καρδίας. Τηρεῖν ἄζυμα καὶ ποιεῖν τὸ πάσχα οὐ δυνάμεθα φασίν· ὑπὲρ ἡμῶν γὰρ ἅπαξ ἐτύθη Χριστός. καλῶς· εἶτα ἐκώλυσεν ἐσθίειν ἄ …
All forms of τηρέω (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.