The Collaborative International Dictionary of English v.0.48:

Shrink \Shrink\, v. t.
   1. To cause to contract or shrink; as, to shrink finnel by
      imersing it in boiling water.
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   2. To draw back; to withdraw. [Obs.]
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            The Libyc Hammon shrinks his horn.    --Milton.
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   To shrink on (Mach.), to fix (one piece or part) firmly
      around (another) by natural contraction in cooling, as a
      tire on a wheel, or a hoop upon a cannon, which is made
      slightly smaller than the part it is to fit, and expanded
      by heat till it can be slipped into place.
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