Esogenic

undefined:

Esogenic is a system origin that is very specific to its individual system users. From the word "esoteric," esogenic means that the system's origins are either:
 * A specific origin that only the system understands
 * A specific mix of origins that only the system understands
 * The system can describe the origin, but does not yet have a name for it
 * A specific mix where the system does not know every type

A system may still continue to call themselves esogenic, if they fit the third definition, but have found/coined a name for it.

Esogenic can also be used alongside other origins (ex: praesigenic and esogenic).