blackguard vs sheep-biter

blackguard

verb
  • To act like a blackguard; to be a scoundrel. 

  • To revile or abuse in scurrilous language. 

noun
  • The lowest servant in a household charged with pots, pans, and other kitchen equipment. 

sheep-biter

How often have the words blackguard and sheep-biter occurred in a corpus of books? (source: Google Ngram Viewer )