odor vs pungency

odor

noun
  • Any smell, whether fragrant or offensive. 

  • A strong, pervasive quality. 

  • Esteem. 

pungency

noun
  • A foul odor. 

  • The state of being pungent. 

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