incentive vs piquant

incentive

adj
  • Inciting; encouraging or moving; rousing to action; stimulating. 

  • Serving to kindle or set on fire. 

noun
  • Something that motivates, rouses, or encourages. 

  • A bonus or reward, often monetary, to work harder. 

piquant

adj
  • Stimulating to the senses; engaging; charming. 

  • Producing a burning sensation due to the presence of chilies or similar spices; spicy, hot. 

  • Favorably stimulating to the palate; pleasantly spicy; tangy. 

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