printing vs xylograph

printing

noun
  • Material that has been printed. 

  • The process or business of producing printed material by means of inked type and a printing press or similar technology. 

  • All the copies of a publication that have been printed in one batch. 

  • Written characters that are not joined up. 

verb
  • To inadequately carry a concealed weapon such that its silhouette is visible on the person wearing it. 

xylograph

noun
  • A print taken from such an engraving. 

  • An engraving in wood or woodcut, especially one used in printing predating the Western tradition (14th c.). 

verb
  • To make a print from an engraving in wood. 

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