The Collaborative International Dictionary of English v.0.48:

Mew \Mew\, v. t. [imp. & p. p. Mewed; p. pr. & vb. n.
   Mewing.] [OE. muen, F. muer, fr. L. mutare to change, fr.
   movere to move. See Move, and cf. Mew a cage, Molt.]
   To shed or cast; to change; to molt; as, the hawk mewed his
   feathers.
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         Nine times the moon had mewed her horns. --Dryden.
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