appeal vs litigate

appeal

verb
  • To summon (someone) to defend their honour in a duel, or their innocence in a trial by combat; to challenge. 

  • To accuse or charge (someone) with wrongdoing (especially treason). 

  • To be attractive. 

  • To call upon a person or an authority to corroborate a statement, to decide a controverted question, or to vindicate one's rights; to entreat, to invoke. 

  • Of the accomplice of a felon: to make an accusation at common law against (the felon). 

  • To have recourse or resort to some physical means. 

  • To call upon someone for a favour, help, etc. 

  • Often followed by against (the inferior court's decision) or to (the superior court): to apply to a superior court or judge for a decision or order by an inferior court or judge to be reviewed and overturned. 

  • Of a fielding side; to ask an umpire for a decision on whether a batsman is out or not, usually by saying "How's that?" or "Howzat?". 

  • To apply to a superior court or judge to review and overturn (a decision or order by an inferior court or judge). 

  • Of a private person: to instituted legal proceedings (against another private person) for some heinous crime, demanding punishment for the particular injury suffered. 

noun
  • At common law, an accusation made against a felon by one of their accomplices (called an approver). 

  • A summons to defend one's honour in a duel, or one's innocence in a trial by combat; a challenge. 

  • An application to a superior court or judge for a decision or order by an inferior court or judge to be reviewed and overturned. 

  • The act, by the fielding side, of asking an umpire for a decision on whether a batsman is out or not. 

  • The legal document or form by which such an application is made; also, the court case in which the application is argued. 

  • A process which formerly might be instituted by one private person against another for some heinous crime demanding punishment for the particular injury suffered, rather than for the offence against the public; an accusation. 

  • A call to, or the use of, a principle or quality for purposes of persuasion. 

  • An accusation or charge against someone for wrongdoing (especially treason). 

  • A person's legal right to apply to court for such a review. 

  • A call to a person or an authority for a decision, help, or proof; an entreaty, an invocation. 

  • A resort to some physical means; a recourse. 

  • A power to attract or interest. 

litigate

verb
  • To dispute; to fight over. 

  • To go to law; to carry on a lawsuit. 

  • To contest in law. 

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