From Longman Dictionary of Contemporary Englishmurkmurk /mɜːk $ mɜːrk/ noun [uncountable] literary DARKdarkness caused by smoke, dirt, or clouds SYN gloom
Examples from the Corpus
murk• As divers tried to work in the mud and murk, relatives of the victims gathered near the crash site.• The headlights cut into the growing murk.• One afternoon I saw the huge grey mass of a supertanker steering towards us, some three miles distant in the murk.• Susan could see a gaslamp vaguely in the murk, and hear the clip of hooves on cobblestones.• She turned on her heel and vanished into the murk.• Piper O'Rourke stepped out of the murk behind them, wearing a concerned expression.• Out of the murk appeared a large squadron of warships.• Yet the murk looked no thicker.Origin murk Old English mirce 