photoengraving vs woodcut

photoengraving

noun
  • A process of transferring a photographic image onto a plate which is then etched and printed. 

  • A plate or reproduction made using this process. 

woodcut

noun
  • A method of printmaking from such a block. 

  • An engraved block of wood, especially one used as a printing form. 

  • A print produced with this method. 

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