fluting vs mezzotint

fluting

noun
  • A decoration consisting of parallel, normally vertical, flutes (grooves) incised into the surface. 

  • The act of making such grooves. 

  • A fluted pleat; a small, rounded or pressed pleat used as trimming on a garment. 

  • A flute-like sound. 

adj
  • Making a sound like a flute. 

mezzotint

noun
  • A form of intaglio etching in which a metal plate is roughened evenly and then smoothed to bring out an image. 

  • An etching or print made using this method. 

verb
  • To make such etchings 

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