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

    The payment of that which is not due.

  • Black's Law Dictionary: 2nd Edition

    Lat. In the civll and Scotch law. A payment of what is not due. When made through ignorance or by mistake, the amount paid might be recovered back by an action termed "conditio indebiti." (Dig. 12, 6.) Bell.