clouded vs roily

clouded

adj
  • Filled with clouds. 

  • Variegated with spots. 

  • Made dim or blurry. 

  • Unclear; surrounded in mystery. 

roily

adj
  • muddy, cloudy (having lots of sediment) 

  • turbulent 

How often have the words clouded and roily occurred in a corpus of books? (source: Google Ngram Viewer )