σανιδώδης
From LSJ
Σκηνὴ πᾶς ὁ βίος καὶ παίγνιον: ἢ μάθε παίζειν, τὴν σπουδὴν μεταθείς, ἢ φέρε τὰς ὀδύνας → All life is a stage and a play: either learn to play laying your gravity aside, or bear with life's pains.
English (LSJ)
ες,
A like a plank, flat, Aret.SD1.8, Plu.2.896e.
German (Pape)
[Seite 861] ες, einem Brett ähnlich, Aret.