faded vs nacreous

faded

adj
  • That has lost some of its former colour or intensity. 

  • high on drugs; stoned 

nacreous

adj
  • Exhibiting lustrous or rainbow-like colors. 

  • Of, or resembling nacre (mother of pearl). 

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