σύρρευσις
From LSJ
μή μοι θεοὺς καλοῦσα βουλεύου κακῶς· πειθαρχία γάρ ἐστι τῆς εὐπραξίας μήτηρ, γυνὴ Σωτῆρος· ὦδ᾽ ἔχει λόγος → When you invoke the gods, do not be ill-advised. For Obedience is the mother of Success, wife of Salvation—as the saying goes.
English (LSJ)
εως, ἡ,
A flowing together, conflux, Arist.HA551b28, Corn. ND30; the form σύρρῠσις in Plb.9.43.5, D.S.1.39, D.H.Comp.16, etc.