Gripes egg

from The Collaborative International Dictionary of English v.0.48
Gripe \Gripe\, n. [See {Grype}.] (Zool.)
   A vulture; the griffin. [Obs.]
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         Like a white hind under the gripe's sharp claws.
                                                  --Shak.
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   {Gripe's egg}, an alchemist's vessel. [Obs.] --E. Jonson.
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