\Coun`ter*plot"\ (koun`t?r-pl?t"), v. t. [imp. & p.
p. {Counterplotted}; p. pr. & vb. n. {Counterplotting}.]
To oppose, as another plot, by plotting; to attempt to
frustrate, as a stratagem, by stratagem.

      Every wile had proved abortive, every plot had been
      counterplotted.                          --De Quinsey.

\Coun"ter*plot`\ (koun"t?r-pl?t`), n.
A plot or artifice opposed to another. --L'Estrange.