groundwork vs nothingness

groundwork

noun
  • The foundation; the basic or fundamental parts that support or allow for the rest. 

nothingness

noun
  • A void; an emptiness. 

  • The quality of inconsequentiality; the lack of significance. 

  • The state of nonexistence; the condition of being nothing. 

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