hollo vs roop

hollo

verb
  • To cry "hollo" 

intj
  • Hey, hello 

noun
  • A cry of "hollo" 

roop

verb
  • To cry; shout. 

  • To roar; make a great noise. 

  • To make hoarse. 

noun
  • Hoarseness. 

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