grappling vs tussling

grappling

noun
  • An act in which something is grappled or grappled with. 

  • A grappling hook or grappling iron. 

  • A small anchor; a grapnel. 

tussling

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

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