The Collaborative International Dictionary of English v.0.48:

Enchase \En*chase"\, v. t. [imp. & p. p. Enchased; p. pr. &
   vb. n. Enchasing.] [F. ench[^a]sser; pref. en- (L. in) +
   ch[^a]sse box containing relics, frame, case, the same word
   as caisse case. See 1st Case, and cf. Chase, Encase,
   Incase.]
   1. To incase or inclose in a border or rim; to surround with
      an ornamental casing, as a gem with gold; to encircle; to
      inclose; to adorn.
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            Enchased with a wanton ivy twine.     --Spenser.
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            An precious stones, in studs of gold enchased,
            The shaggy velvet of his buskins graced. --Mickle.
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   2. To chase; to ornament by embossing or engraving; as, to
      enchase a watch case.
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            With golden letters . . . well enchased. --Spenser.
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   3. To delineate or describe, as by writing. [Obs.]
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            All which . . . for to enchase,
            Him needeth sure a golden pen, I ween. --Spenser.
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