pitch into vs roust

pitch into

verb
  • To attack; to assault; to abuse. 

roust

verb
  • To harass, to treat in a rough way. 

  • to arrest 

  • to rout out of bed; to rouse 

  • to drive strongly 

noun
  • A strong tide or current, especially in a narrow channel. 

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