What does arbitrament mean?
The definition of arbitrament
Ar*bit”ra*ment, n.
Etym: [LL. arbitramentum.]

1 Determination; decision; arbitration. The arbitrament of time. Everett. Gladly at this moment would MacIvor have put their quarrel to personal arbitrament. Sir W. Scott.
2 The award of arbitrators. Cowell.