μάρτυρι (martyri)
μάρτυρι is an Ancient Greek form of μάρτυς, meaning “witness”. It is the dative singular masculine noun.
Found 45 times in the Ancient Greek texts on Socratos.
Where it is used
Diogenes Laertius, Vitae philosophorum 8.2.51: … ὶ Ἐρατοσθένης ἐν τοῖς Ὀλυμπιονίκαις τὴν πρώτην καὶ ἑβδομηκοστὴν Ὀλυμπιάδα νενικηκέναι τὸν τοῦ Μέτωνος πατέρα, μάρτυρι χρώμενος Ἀριστοτέλει.
Greek Anthology, Greek Anthology, Ἀνθολογία, Volume I 1.18.2: ἄνθετο δʼ ἀχράντῳ μάρτυρί με Τροφίμῳ.
All forms of μάρτυς (declension 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.