σμηκτρίς
From LSJ
τὸ γὰρ πράττειν τοῦ λέγειν καὶ χειροτονεῖν ὕστερον ὂν τῇ τάξει, πρότερον τῇ δυνάμει καὶ κρεῖττόν ἐστιν (Demosthenes 3.15) → for action, even though posterior in the order of events to speaking and voting, is prior in importance and superior
English (LSJ)
ίδος, ἡ, γῆ a kind of A fuller's earth, Eup.380, Nicoch.4, Cephisod.6, Hp.Mul.2.189, Fist.3.
German (Pape)
[Seite 910] ἡ, γῆ, eine Walkerde, Zeug damit zu reinigen, Poll. 7, 40, auch σμηκτίς. Vgl. Lob. Phryn. 253.
Dutch (Woordenboekgrieks.nl)
σμηκτρίς -ίδος [σμήχω] reinigend.