cumulative

adjective6

1. •
   Incorporating all current and previous data up to the present or at the time of measuring or collating.
2. •
   That is formed by an accumulation of successive additions.

   • As for knowledge which man receiveth by teaching, it is cumulative, not original. — 1605
3. •
   Adding one statement to another.
4. •
   That tends to accumulate.
5. •
   Having priority rights to receive a dividend that accrue until paid.
6. •
   (of evidence, witnesses, etc.) Intended to illustrate an argument that has already been demonstrated excessively.

   • The state wants to bring in ten blood-spatter experts to testify. Your Honor, that is cumulative testimony.