Constant vs Core

Constant

name
  • A male given name from Latin, feminine equivalent Constance 

  • A surname. 

  • A locality in Saint George parish, Barbados. 

Core

name
  • A female given name from Ancient Greek 

  • The birth name of Persephone/Proserpina, the queen of the Underworld/Hades, and goddess of the seasons and of vegetation. She is the daughter of Zeus and Demeter, and the wife of Hades. 

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