foggish vs roky

foggish

adj
  • Synonym of foggy (“obscured by mist or fog; unclear; hazy”) 

roky

adj
  • Misty; foggy; cloudy. 

  • Exhibiting roke (a defect in steel ingots). 

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