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
mercātōrĭus: a, um, adj. mercator,
I mercantile (ante-class.): navis mercatoria, a merchant-vessel, Plaut. Bacch. 2, 3, 2.