boxing vs prizefight

boxing

noun
  • A sport where two opponents punch each other with gloved fists to head and torso; the object being to score more points by the end of the match or by knockout, or technical knockout. 

  • Automatic conversion of value types to objects by wrapping them within a heap-allocated reference type. 

  • Material used for making boxes or casing. 

  • Casing. 

prizefight

noun
  • A professional boxing match, in which two boxers compete for a prize (usually money). 

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