πολυνιφής
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)
ές,
A deep with snow, δρία E.Hel. 1326 (lyr.):—also πολύ-νῐφος, ον, EM7.9.
German (Pape)
[Seite 667] ές, viel od. sehr beschnei't, πέτρινα δρία, Eur. Hel. 1326.