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

    A memorandum of debt, consisting of these letters, ("I owe you,") a sum of money, and the debtor's signature, is termed an "I O U." Kinney v. Flynn, 2R.I, 329.