κύφων
From LSJ
βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
English (LSJ)
ωνος, ὁ, (κυφός)
A crooked piece of wood, bent yoke of the plough, Thgn.1201: κύφωνες, οἱ, two bars in the frame of a chariot, Poll.1.143. II pillory, ἐν τῷ κ. αὐχένα ἔχειν Cratin.115, cf. Ar. Pl.476, 606; δεθῆναι ἐν τῷ κ. Arist.Pol.1306b2; μαστιγούσθω ἐν τῷ κ. OGI483.177 (Pergam.). 2 one who has had his neck in the pillory, knave, Archil.178, Luc.Pseudol.17. III part of a woman's dress, Posidipp.44. IV Archit., curved beam, IG42(1).102.224, al. (Epid., iv B.C.). V part of a water-wheel, PLond.3.1177.213 (ii A.D.).