the.com/murky
Where light, water, and your moral certainty all go to drown.
means Dark, cloudy, or unclear — literally hard to see through, or figuratively hard to understand or trust.
from From Old English mirce, dark or gloomy, kin to the same shadowy roots that gave us the murk lurking in every haunted forest.
Murky watersThe phrase for situations nobody wants to enter.
Sound twinSister of the lost word merky, both dripping gloom.
Detective staplePasts are murky far more often than sunny.