סָרַר

From LSJ

βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόνonce limpid waters are stained with mud, you'll never find a drink

Source

English (Strong)

a primitive root; to turn away, i.e. (morally) be refractory: X away, backsliding, rebellious, revolter(-ing), slide back, stubborn, withdrew.