twopenny vs unworthy

twopenny

adj
  • Cheap; worthless; petty. 

  • Having a value or cost of twopence. 

unworthy

adj
  • Not worthy; lacking value or merit; worthless. 

noun
  • An inadequate person. 

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