excretion vs holding

excretion

noun
  • Something excreted in that manner, especially urine or feces. 

  • The process of removing or ejecting material that has no further utility, especially from the body; the act of excreting. 

holding

noun
  • Something that one owns, especially stocks and bonds. 

  • A determination of law made by a court. 

  • A holding company, or other kind of company (by back-translation from Russian холдинг (xolding)). 

  • A tenure; a farm or other estate held of another. 

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