δεκακέφαλοι
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
Greek Monolingual
δεκακέφαλοι, οι (Μ)
μυθικά όντα με δέκα κεφάλια.