Savior vs Saviour

Savior

name

  • A female given name from English 

  • Jesus Christ 

  • A male given name from English 

Saviour

name

  • A female given name from English 

  • A male given name from English 

  • Britain standard spelling of Savior. 

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