fitter vs prominent

fitter

noun
  • A person who fits or assembles something. 

  • An epileptic. 

  • A person employed to find suitable music to accompany silent films. 

prominent

adj
  • standing out, or projecting; jutting; protuberant 

  • likely to attract attention from its size or position; conspicuous 

  • eminent; distinguished above others 

noun
  • Any of various moths having a conspicuous projection on the inner margin of the wings. 

  • In Nazi concentration camps, an inmate entrusted with minor supervisory duties and rewarded with perquisites. 

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