comeupance vs aftermath

comeupance and aftermath both are nouns.

Word	Noun	Adjective	Verb	Adverb
comeupance	Yes	No	No	No
aftermath	Yes	No	No	No

As nouns, aftermath is a hypernym of comeupance; that is, aftermath is a word with a broader meaning than comeupance:

Other hypernyms of comeupance include consequence.

comeupance (noun)	aftermath (noun)
an outcome (good or bad) that is well deserved and fitting	the outcome of an event especially as relative to an individual
	the consequences of an event (especially a catastrophic event)