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

    For or during good behavior.

  • Black's Law Dictionary: 2nd Edition

    For life or until fault. This phrase describes the tenure of an office which is otherwise said to be held "for life or during good behavior." It is equivalent to quamdiu bene se gesserit