blackguard vs rascal

blackguard

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

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

  • To revile or abuse in scurrilous language. 

rascal

noun
  • A dishonest person; a rogue, a scoundrel, a trickster. 

  • Sometimes diminutive: a cheeky person or creature; a troublemaker. 

  • A member of a criminal gang. 

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