| E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898. |
| | | Biforked Letter of the Greeks. | | |
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The capital U, made thus Y, which resembles a bird flying. | 1 |
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| [The birds] flying, write upon the sky |
| The biforked letter of the Greeks. | |
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Longfellow: The Wayside Inn, prelude. |
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