μαρτυρεῖ (martyrei)

μαρτυρεῖ is an Ancient Greek form of μαρτυρέω, meaning “bear witness, testify”. It is the 3rd person singular present active indicative.

Found 206 times in the Ancient Greek texts on Socratos.

Where it is used

Diogenes Laertius, Vitae philosophorum 1.1.23: … εῖν, ὥς φησιν Εὔδημος ἐν τῇ περὶ τῶν Ἀστρολογουμένων ἱστορίᾳ· ὅθεν αὐτὸν καὶ Ξενοφάνης καὶ Ἡρόδοτος θαυμάζει. μαρτυρεῖ δʼ αὐτῷ καὶ Ἡράκλειτος καὶ Δημόκριτος.

New Testament, Hebrews 10.15: Μαρτυρεῖ δὲ ἡμῖν καὶ τὸ πνεῦμα τὸ ἅγιον, μετὰ γὰρ τὸ εἰρηκέναι

Lucian of Samosata, Cataplus 27: … ν ἃ ἐπʼ ἐμοῦ διεπράττετο. σαφέστατα μὲν οὖν καταμαρτυρεῖς μηδὲ εἰπεῖν αὐτὰ ὑπομένουσα. καὶ σὺ δὲ ὁ Λύχνος ἤδη μαρτύρει. ἐγὼ τὰ μεθʼ ἡμέραν μὲν οὐκ εἶδον· οὐ γὰρ παρῆν· ἃ δὲ τῶν νυκτῶν ἐποίει καὶ ἔπασχεν, ὀκνῶ λέγειν· πλὴν ἀλλὰ ἐ …

All forms of μαρτυρέω (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.