πινακίσκος
From LSJ
νᾶφε καὶ μέμνασο ἀπιστεῖν → keep a clear head and remember not to believe a thing (Epicharmus fr. 250)
English (LSJ)
ὁ, Dim. of
A πίναξ 2, Ar.Pl. 813,Fr.532, Pherecr.108.14, Pl.Com.119, Lync.1.6.
German (Pape)
[Seite 616] ὁ, = πινακίδιον, Ar. Plut. 813.