φλυάρημα
From LSJ
καὶ τὸ σιγᾶν πολλάκις ἐστὶ σοφώτατον ἀνθρώπῳ νοῆσαι → and silence is often the wisest thing for a man to heed, and often is man's best wisdom to be silent, and often keeping silent is the wisest thing for a man to heed
English (LSJ)
ατος, τό,
A nonsense, futility, in pl., D.H.Comp.18, Ph.2.495, J.Ap.2.9.
German (Pape)
[Seite 1293] unnützes Geschwätz, Possen, Ios.