German term (edited): repliziert - duplik

It may be “veraltend,” but those are the designations I learned at law school. They let one know what was submitted by whom and in what order.

The “Duplik” is the reply to the “Replik,” which is the reply—here they are using the corresponding verb—to the “Klagerwiderung,” which, in turn, is the reply to the “Klage.” It may seem a bit much, but it aids communication between professionals working in the field, i.e., lawyers, judges, prosecutors, etc. (as most specialized terminology does), although it does tend to confuse laypersons.

Here is a nice description and explanation:
"After the parties have initially stated their claims and defences, they may wish, or the arbitral tribunal might request them, to present further written submissions so as to prepare for the hearings or to provide the basis for a decision without hearings. In such submissions, the parties, for example, present or comment on allegations and evidence, cite or explain law, or make or react to proposals. In practice such submissions are referred to variously as, for example, statement, memorial, counter-memorial, brief, counter-brief, reply, réplique, duplique, rebuttal or rejoinder; the terminology is a matter of linguistic usage and the scope or sequence of the submission."
[emphasis added]
See http://www.sice.oas.org/dispute/comarb/uncitral/arbproce2.as...
:-)

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Note added at 44 mins (2006-08-21 18:56:13 GMT)
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BTW - I didn't actually add any emphasis. (Well, I took out the emphasis I had added, but forgot to delete the note.)
;-)