dash off vs xylograph

dash off

verb
  • To write quickly or informally. 

  • To leave a place quickly or briefly. 

xylograph

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

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.). 

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