imprint vs watermark

imprint

noun
  • A distinctive marking, symbol or logo. 

  • The name and details of a publisher or printer, as printed in a book etc.; a publishing house. 

  • An impression; the mark left behind by printing something. 

verb
  • To leave a print, impression, image, etc. 

  • To mark a gene as being from a particular parent so that only one of the two copies of the gene is expressed. 

  • To learn something indelibly at a particular stage of life, such as who one's parents are. 

watermark

noun
  • A logo superimposed on a digital image, a television broadcast, etc. 

  • A mark indicating the level to which water has risen. 

  • A translucent design impressed on the surface of paper and visible when the paper is held to the light. 

  • A value stored in a datafile to ensure its integrity, so that if the file's contents are changed then the watermark will no longer match the contents. 

verb
  • To mark paper with a watermark. 

  • To mark a datafile with a digital watermark. 

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