photoengrave vs photograph

photoengrave

verb
  • To make a photoengraving of an image 

photograph

verb
  • To take a photograph (of). 

  • To appear in a photograph. 

  • To fix permanently in the memory etc. 

noun
  • A picture created by projecting an image onto a photosensitive surface such as a chemically treated plate or film, CCD receptor, etc. 

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