apathy vs oomph

apathy

noun
  • Lack of emotion or motivation; lack of interest or enthusiasm towards something; disinterest (in something). 

oomph

noun
  • A bassy grunting or thudding sound. 

  • Strength, power, passion or effectiveness; clout. 

  • Sex appeal. 

verb
  • To produce a bassy grunting or thudding sound. 

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