The Collaborative International Dictionary of English v.0.48:

Yoke \Yoke\, v. t. [imp. & p. p. Yoked; p. pr. & vb. n.
   Yoking.]
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   1. To put a yoke on; to join in or with a yoke; as, to yoke
      oxen, or pair of oxen.
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   2. To couple; to join with another. "Be ye not unequally
      yoked with unbelievers." --2 Cor. vi. 14.
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            Cassius, you are yoked with a lamb.   --Shak.
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   3. To enslave; to bring into bondage; to restrain; to
      confine.
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            Then were they yoked with garrisons.  --Milton.
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            The words and promises that yoke
            The conqueror are quickly broke.      --Hudibras.
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