breakup vs severance

breakup

noun
  • The act of breaking up; disintegration or division. 

  • The termination of a friendship or a romantic relationship. 

  • The time of year during which winter ice covering bodies of water disintegrates; more generally, spring. 

  • A loss of emotional control; a breakdown. 

severance

noun
  • The act of severing or the state of being severed. 

  • A separation. 

  • A severance payment. 

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