As nouns the difference between superation and supernation
is that superation is the act of superating or surmounting while supernation is an alliance or union of several nations into a nationlike entity.
superation
English
Noun
The act of superating or surmounting.
supernation
English
Noun
(
en noun)
An alliance or union of several nations into a nationlike entity.
Synonyms
* superstate