The Collaborative International Dictionary of English v.0.48:

Equivoque \Eq"ui*voque\, Equivoke \Eq"ui*voke\, n. [F.
   ['e]quivoque. See Equivocal.]
   1. An ambiguous term; a word susceptible of different
      significations. --Coleridge.
      [1913 Webster]

   2. An equivocation; a guibble. --B. Jonson.
      [1913 Webster]