break-off vs quietus

break-off

noun
  • A break, discontinuance, or interruption 

  • That which breaks off, or is broken off 

  • The first shot in a game of snooker or other cue-game 

verb
  • To play the first shot in a game of snooker 

quietus

noun
  • A stillness or pause; something that quiets or represses; removal from activity. 

  • Death. 

  • Final settlement (e.g., of a debt). 

How often have the words break-off and quietus occurred in a corpus of books? (source: Google Ngram Viewer )