Constant vs Veteran

Constant

name
  • A locality in Saint George parish, Barbados. 

  • A male given name from Latin, feminine equivalent Constance 

  • A surname. 

Veteran

name
  • A village in Alberta, Canada. 

  • A town in New York. 

  • A census-designated place in Wyoming. 

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