ἀρχαϊσμός
From LSJ
Κρεῖττον σιωπᾶν ἐστιν ἢ λαλεῖν μάτην → Silentium anteferendum est vaniloquentiae → Das Schweigen übertrifft vergebliches Geschwätz
English (LSJ)
ὁ,
A old-world charm of style, D.H.Comp.22. 2 use of obsolete expressions, ἀ. οὗτος ῥημάτων Men.11 D., cf. Sch.E.Hipp. 23. 3 ancient custom, περὶ ἀρχαϊσμοῦ, title of work by Manetho, Porph.Abst.2.55.