Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Ballentine's Law Dictionary

    In anger.

  • Black's Law Dictionary: 2nd Edition

    By one who is angry. A devise or gift made by a man adversely to the interest of his heirs, on account of anger or hatred against them, is said to be made ab irato. A suit to set aside such a will is called an action ab irato. Meri. Repert "Ab irato."