Counterprove \Coun`ter*prove"\ (koun`t?r-pr??v"), v. t. [imp. &
p. p. {Counterproved} (-pr??vd"); p. pr. & vb. n.
{Counterproving}.]
To take a counter proof of, or a copy in reverse, by taking
an impression directly from the face of an original. See
{Counter proof}, under {Counter}.
[1913 Webster]