διηθ-έω · diēth-eō — LSJ
strain through, filter, Hp. Acut. 7, Pl. Sph. 226b, Ti. 45c; οἶνον δ. πυρέττοντι Plu. Virt. et vit. 2.101c, cf. Mim.Oxy. 413.161:—Pass., Arist. Mete. 368a22, Plb. 34.9.10; of air in the lungs, Gal. 2.705; καθαρὸν καὶ διηθημένον [γένος], opp. μικτόν, Ph. 2.3.
wash out, cleanse, τὴν κοιλίην οἴνῳ, θυμιήμασι, Hdt. 2.86.
intr., of liquid, filter through, percolate, Id. 2.93.