The Collaborative International Dictionary of English v.0.48:

Empale \Em*pale"\, v. t. [Pref. em- (L. in) + pale: cf. OF.
   empalir.]
   To make pale. [Obs.]
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         No bloodless malady empales their face.  --G. Fletcher.
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The Collaborative International Dictionary of English v.0.48:

Empale \Em*pale"\, v. t. [imp. & p. p. Empaled; p. pr. & vb.
   n. Empaling.] [OF. empaler to palisade, pierce, F. empaler
   to punish by empalement; pref. em- (L. in) + OF. & F. pal a
   pale, stake. See Pale a stake, and cf. Impale.] [Written
   also impale.]
   1. To fence or fortify with stakes; to surround with a line
      of stakes for defense; to impale.
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            All that dwell near enemies empale villages, to save
            themselves from surprise.             --Sir W.
                                                  Raleigh.
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   2. To inclose; to surround. See Impale.
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   3. To put to death by thrusting a sharpened stake through the
      body.
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   4. (Her.) Same as Impale.
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WordNet (r) 3.0 (2006):

empale
    v 1: pierce with a sharp stake or point; "impale a shrimp on a
         skewer" [syn: transfix, impale, empale, spike]