louche vs olfactory

louche

adj
  • Of questionable taste or morality; decadent. 

  • Unconventional and slightly disreputable in an attractive manner; raffish, rakish. 

  • Not reputable or decent. 

verb
  • To make (an alcoholic beverage, e.g. absinthe or ouzo) cloudy by mixing it with water, due to the presence of anethole. This is known as the ouzo effect. 

olfactory

adj
  • Concerning the sense of smell. 

noun
  • The sense of smell. 

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