The Collaborative International Dictionary of English v.0.48:

Coffin \Cof"fin\, v. t. [imp. & p. p. Coffined; p. pr. & vb.
   n. Coffining.]
   To inclose in, or as in, a coffin.
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         Would'st thou have laughed, had I come coffined home?
                                                  --Shak.
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         Devotion is not coffined in a cell.      --John Hall
                                                  (1646).
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