βούμασθος
From LSJ
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
English (LSJ)
or βού-μαστος (so in PSI4.429 (iii A. D.)) (sc. ἄμπελος), ἡ,
A vine bearing large grapes, Virg.G.2.102, Plin. HN14.15, Macr.Sat.3.20.7.