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βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
P. and V. βεβαίως, ἀσφαλῶς, V. ἀραρότως (also Plato but rare P.), V. ἐμπέδως.