ἐμμεσιτεύω
From LSJ
ψυχῆς πείρατα ἰὼν οὐκ ἂν ἐξεύροιο πᾶσαν ἐπιπορευόμενος ὁδόν· οὕτω βαθὺν λόγον ἔχει → one would never discover the limits of soul, should one traverse every road—so deep a measure does it possess
German (Pape)
[Seite 808] vermitteln, Clem. Al.
Greek (Liddell-Scott)
ἐμμεσῑτεύω: κατορθῶ τι διὰ μεσιτείας, Κλήμ. Ἀλ. 862.