maintain vs outlaw

maintain

verb
  • To keep up; to preserve; to uphold (a state, condition etc.). 

  • To declare or affirm (a clause) to be true; to assert. 

outlaw

verb
  • To deprive of legal force. 

  • To remove from legal jurisdiction or enforcement. 

  • To declare illegal. 

  • To place a ban upon. 

noun
  • A fugitive from the law. 

  • An in-law: a relative by marriage. 

  • A person who operates outside established norms. 

  • One who would be an in-law except that the marriage-like relationship is unofficial. 

  • A criminal who is excluded from normal legal rights; one who can be killed at will without legal penalty. 

  • A wild horse. 

  • A prostitute who works alone, without a pimp. 

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