συναποστέλλω
From LSJ
αὐτῇ καθ' αὑτὴν εἰλικρινεῖ τῇ διανοίᾳ χρώμενος → by using his mind alone by itself and uncorrupted
English (LSJ)
A dispatch together with, τινι Th.6.88; Στράτωνι νεανίσκον PCair.Zen.18.5 (iii B.C.); τινὰ μετ' ἐμοῦ ib.439.3 (iii B.C.); join in dispatching, Is.6.27, X.HG5.2.37, etc.