εἰ δὲ τύχῃ τις ἔρδων, μελίφρον' αἰτίαν ῥοαῖσι Μοισᾶν ἐνέβαλε → if someone is successful in his deeds, he casts a cause for sweet thoughts into the streams of the Muses
ἵεν: Αἰολ. γ΄ πληθ. παρατ. τοῦ ἵημι· πρβλ. ἵε.
3ᵉ sg. impf. épq. sync. de ἵημι.