I O U
A Law Dictionary, Adapted to the Constitution and Laws of the United States · John Bouvier · 1839
A Law Dictionary, Adapted to the Constitution and Laws of the United States
contracts. The memorandum I O U, (I owe you,) given by merchants to each other is a mere evidence of the debt, and does not amount to a promissory note.
Esp. Cas. N. P. 426; 4 Carr. & Payne, 324; 19 Eng. Com. L. Rep. 405.: