triplication

from The Collaborative International Dictionary of English v.0.48

Triplication \Trip"li*ca"tion\, n. [L. triplicatio: cf. F.
   triplication.]
   1. The act of tripling, or making threefold, or adding three
      together. --Glanvill.
      [1913 Webster]

   2. (Civil Law) Same as {Surrejoinder}.
      [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

TRIPLICATION, pleading. This was formerly used in pleading instead of 
rebutter. 1 Bro. Civ. Law, 469, n.