συμβρύκω
From LSJ
ἐπὶ τῷ μὴ κοινωνικῶς χρῆσθαι τοῖς εὐτυχήμασι → for not having used their success in a spirit of partnership
English (LSJ)
[ῡ],
A gnash, ἐπὶ τῆς γλώσσης τοὺς ὀδόντας Iamb.VP31.194.
German (Pape)
[Seite 980] τοὺς ὀδόντας, die Zähne zusammenbeißen, Iambl. V. P. 194.