commonplace vs rarefied

commonplace

adj
  • Ordinary; not having any remarkable characteristics. 

verb
  • To make a commonplace book. 

  • To enter in a commonplace book, or to reduce to general heads. 

noun
  • A platitude or cliché. 

  • A commonplace book. 

  • Something that is ordinary; something commonly done or occurring. 

  • A memorandum; something to be frequently consulted or referred to. 

rarefied

adj
  • Less dense than usual; thin. 

  • 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. 

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