odor vs stench

odor

noun

  • Any smell, whether fragrant or offensive. 

  • A strong, pervasive quality. 

  • Esteem. 

stench

noun

  • a strong foul smell; a stink. 

  • A foul quality. 

verb

  • To stanch. 

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