Umon

Umon is a tiny dragon Digimon sealed within Goldramon's left. It is called "Umon of Blue Thunder" (蒼雷のウモン), and governs over "Regeneration".

Design
Umon appears as a mass of black energy in the shape of a dragon.

Etymologies
Name given by the Digimon Reference Book. No official romanization available.
 * Umon (ウモン)