illicit vs peccant

illicit

adj

  • Unlawful. 

  • Breaking social norms. 

  • Not approved by law, but not invalid. 

noun

  • A banned or unlawful item. 

peccant

adj

  • Sinful. 

  • Wrong; defective; faulty. 

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