cavalry vs lancers

cavalry

noun
  • Source of rescue, especially in an emergency. 

  • An individual unit of the cavalry arm of service. 

  • The branch of the military transported by fast light vehicles, also known as mechanized cavalry. 

  • The military arm of service that fights while riding horses. 

lancers

noun
  • The music for a lancers. 

  • A traditional dance for eight or sixteen couples, originating from a 19th century quadrille. 

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