The Collaborative International Dictionary of English v.0.48:

Rother \Roth"er\, a. [AS. hry[eth]er; cf. D. rund.] (Zool.)
   Bovine. -- n. A bovine beast. [Obs.] --Shak.
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   Rother beasts, cattle of the bovine genus; black cattle.
      [Obs.] --Golding.

   Rother soil, the dung of rother beasts.
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The Collaborative International Dictionary of English v.0.48:

Rother \Roth"er\, n. [OE. See Rudder.]
   A rudder.
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   Rother nail, a nail with a very full head, used for
      fastening the rudder irons of ships; -- so called by
      shipwrights.
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