Reasoning behind the relic title

(I'm not sure where this should go, so feel free to move).

So, I have been curious about the meaning of the relic title, (The Noumenon) so I have done some reading, and it is actually an incredible complex and complicated thing. (Which I won't go into here cos it made my head hurt :P).

Anyone have any idea why this title may have been chosen?

It has to do with how the Anima's "behavior" is imperceivable to Gerolt or Ardashir.

The Noumenon as a title refers to the Anima Weapon's "being" (not the player), or more specifically, a descriptor of its comparative relationship to Gerolt and Ardashir.