disallowed vs lawful

disallowed

adj

  • invalid 

  • forbidden 

lawful

noun

  • A character having a lawful alignment. 

adj

  • Operating according to some law or fundamental principle. 

  • Conforming to, or recognised by the laws of society. 

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