close as wax vs crass

close as wax

adj
  • miserly, tight, or secretive 

crass

adj
  • coarse; crude; unrefined or insensitive; lacking discrimination 

  • materialistic 

  • dense 

  • Lacking finesse; crude and obvious. 

How often have the words close as wax and crass occurred in a corpus of books? (source: Google Ngram Viewer )