altercation vs emulation

altercation

noun
  • Heated or angry dispute 

emulation

noun
  • Execution of a program or other software designed for a different system, by simulating parts of the other system. 

  • The endeavor or desire to equal or excel someone else in qualities or actions. 

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