amenity vs incentive

amenity

noun
  • A thing or circumstance that is welcome and makes life a little easier or more pleasant. 

  • Pleasantness. 

  • Convenience. 

  • a unit pertaining to the infrastructure of a community, such as a public toilet, a postbox, a library, etc. 

incentive

noun
  • Something that motivates, rouses, or encourages. 

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

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

  • Serving to kindle or set on fire. 

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