foggy vs pellucid

foggy

adj
  • Confused, befuddled, etc. 

  • Being, covered with, or pertaining to fog (“tall grass etc that grows after, or is left after, cutting; moss”) 

  • Obscured by mist or fog; unclear; hazy 

pellucid

adj
  • Of a person, their mind, etc.: able to think and understand clearly; not confused; clear, sharp. 

  • Allowing the passage of light; translucent or transparent. 

  • Easily understood; clear. 

  • Of music or some other sound: not discordant or harsh; clear and pure-sounding. 

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