impotent vs unoriginal

impotent

noun
  • an impotent or powerless person 

  • a man who has erectile dysfunction 

adj
  • lacking physical strength or vigor; weak 

  • incapable of sexual intercourse, often because of an inability to achieve or sustain an erection, having impotentia coeundi 

  • lacking in power, as to act effectively; helpless 

  • sterile 

unoriginal

noun
  • A person or work that does not exhibit originality. 

adj
  • Not being the first or earliest version of something, not original. 

  • Lacking originality. 

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