oomph vs vigor

oomph

verb
  • To produce a bassy grunting or thudding sound. 

noun
  • A bassy grunting or thudding sound. 

  • Strength, power, passion or effectiveness; clout. 

  • Sex appeal. 

vigor

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