rarefied vs vapory

rarefied

adj
  • Distant from the lives and everyday concerns of ordinary people; esoteric, exclusive, select. 

  • Elevated in style or nature, sublime; of high intellectual or moral value. 

  • Less dense than usual; thin. 

vapory

adj
  • Resembling vapor; vaporous. 

  • Characterized by the presence of vapor; full of, or obscured by, vapor. 

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