μαρτυρεῖν (martyrein)

μαρτυρεῖν is an Ancient Greek form of μαρτυρέω, meaning “bear witness, testify”. It is the present active infinitive.

Found 155 times in the Ancient Greek texts on Socratos.

Where it is used

Diogenes Laertius, Vitae philosophorum 4.2.7: … καὶ τομὰς καὶ καύσεις πολλάκις ὑπομεῖναι περὶ τὸ αἰδοῖον. ἦν δὲ καὶ ἀξιόπιστος σφόδρα, ὥστε μὴ ἐξὸν ἀνώμοτον μαρτυρεῖν, τούτῳ μόνῳ συνεχώρουν Ἀθηναῖοι.

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.