monoprint vs woodblock

monoprint

noun
  • A form of printing on paper from a glass sheet to which oil paint has been applied; monotype. 

verb
  • To print using this technique. 

woodblock

noun
  • A wooden block used as a printing form. 

  • The emergency issue of the Cape triangles, printed in 1861. 

  • A woodcut. 

  • A percussion instrument consisting of a hollow block of wood struck with a drumstick. 

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