disputation vs tussling

disputation

noun
  • The act of disputing; a dispute or argument. 

  • A rhetorical exercise in which parties reason in opposition to each other on some question proposed. 

tussling

noun
  • The act of one who tussles; a struggle. 

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