| E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898. |
| | | I.O.U. | | |
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The memorandum of a debt given by the borrower to the lender. It must not contain a promise to pay. The letters mean, I owe You. | 1 |
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An I.O.U. requires no stamp, unless it specifies a day of payment, when it becomes a bill, and must have a stamp. | 2 |
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