ἐκδιηθέω
From LSJ
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
English (LSJ)
A filter out, Hp.Morb.4.37 (Pass.).
Spanish (DGE)
filtrar en v. pas. τὸ ὕδωρ ... εἰς τὴν κύστιν Hp.Morb.4.37.