expiscate

from The Collaborative International Dictionary of English v.0.48
Expiscate \Ex*pis"cate\, v. t. [L. expiscatus, p. p. of
   expiscari to fish out; ex out+piscari to fish, piscis fish.]
   To fish out; to find out by skill or laborious investigation;
   to search out. "To expiscate principles." [R.] --Nichol.
   [1913 Webster]

         Dr. Burton has with much ingenuity endeavored to
         expiscate the truth which may be involved in them. --W.
                                                  L. Alexander.
   [1913 Webster]
    

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