discontinuation vs voiding

discontinuation

noun
  • The act of stopping producing or supplying a product. 

  • The process of quitting a course of treatment with a drug. 

voiding

noun
  • An act by which something is voided, such as urination. 

  • That which is voided; that which is ejected or evacuated; a remnant; a fragment. 

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