νεφεληδόν
From LSJ
ἐπὶ τῷ μὴ κοινωνικῶς χρῆσθαι τοῖς εὐτυχήμασι → for not having used their success in a spirit of partnership
English (LSJ)
Adv.
A in the manner of clouds, Nonn.D.15.1.
Greek (Liddell-Scott)
νεφεληδόν: Ἐπίρρ., ὡς αἱ νεφέλαι, κατὰ τὸν τρόπον τῶν νεφελῶν, Νόνν. Δ. 15. 1.