splitting vs unification

splitting

noun
  • An instance where something splits. 

  • A division in the mind, or affecting one's sense of self. 

  • The cleavage of a covalent bond. 

adj
  • Very rapid. 

  • Resembling the sound of something being split or ripped. 

  • Severely painful. 

unification

noun
  • Given two terms, their join with respect to a specialisation order. 

  • The act of unifying. 

  • The state of being unified. 

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