inoperative vs orf

inoperative

adj
  • Not working or functioning; either idle or broken. 

  • No longer legally binding. 

orf

adj
  • off 

noun
  • An exanthemous disease caused by a parapox virus, occurring primarily in sheep and goats but also capable of infecting humans. 

adv
  • off 

prep
  • off 

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