brackish vs olfactory

brackish

adj
  • Distasteful; unpleasant; not appealing to the taste. 

  • Repulsive 

  • Salty or slightly salty, as a mixture of fresh and sea water, such as that found in estuaries. 

olfactory

adj
  • Concerning the sense of smell. 

noun
  • The sense of smell. 

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