incentive vs supporter

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. 

supporter

noun
  • Something that supports another thing. 

  • A person who provides moral or physical support to another; an attendant participating in a ceremony or procession. 

  • Someone who is a fan of a certain sports team or sportsperson. 

  • A garter worn around the leg to support a sock or stocking. 

  • Something that supports a structure such as a building or a sculpture. 

  • A person who supports, promotes, advocates or champions a cause, movement, or political party; an adherent. 

  • An animal or figure that supports a shield in a coat of arms. 

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