roop vs yell

roop

verb
  • To roar; make a great noise. 

  • To make hoarse. 

  • To cry; shout. 

noun
  • Hoarseness. 

yell

verb
  • To shout; holler; make a loud sound with the voice. 

  • To tell someone off in a loud and angry manner. 

  • To convey by shouting. 

adj
  • dry (of cow) 

noun
  • A phrase to be shouted. 

  • A shout. 

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