imager vs simulacrum

imager

noun
  • One who images or forms likenesses; a sculptor. 

  • A system that creates a digital copy such as a disk image. 

simulacrum

noun
  • An image or representation. 

  • A faint trace or semblance. 

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