The Collaborative International Dictionary of English v.0.48:

Raven \Rav"en\, v. t. [imp. & p. p. Ravened (r[a^]v"'nd); p.
   pr. & vb. n. Ravening.] [Written also ravin, and ravine.]
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   1. To obtain or seize by violence. --Hakewill.
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   2. To devour with great eagerness.
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            Like rats that ravin down their proper bane. --Shak.
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