Rabbi — 'my master', title of Jewish teachers
Ancient Greek word, found 13 times in the texts on Socratos.
New Testament, Matthew 23.7: καὶ τοὺς ἀσπασμοὺς ἐν ταῖς ἀγοραῖς καὶ καλεῖσθαι ὑπὸ τῶν ἀνθρώπων Ῥαββεί.