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

    Fifteen years.

  • Black's Law Dictionary: 2nd Edition

    A mode of computing time by the space of fifteen years, instituted by Constantine the Great; originally the period for the payment of certain taxes. Some of the charters of King Edgar and Henry III. are dated by indictions. Wharton.