cryptogenic

English

Etymology

From crypto- +‎ -genic.

Adjective

cryptogenic (not comparable)

1. (of an organism) Of uncertain origin, either introduced or native to its area.
2. (of epilepsy) Presumed but not proven to be caused by an abnormality in a particular part of the brain (contrasts with symptomatic and idiopathic).
3. (of a disease) Of uncertain cause.