aftermath vs effect

aftermath and effect both are nouns.

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

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

Other hypernyms of aftermath include consequence, event, issue, outcome, result, upshot.

aftermath (noun)	effect (noun)
the outcome of an event especially as relative to an individual	an outward appearance
the consequences of an event (especially a catastrophic event)	(of a law) having legal validity
	an impression (especially one that is artificial or contrived)
	the central meaning or theme of a speech or literary work
	a phenomenon that follows and is caused by some previous phenomenon
	a symptom caused by an illness or a drug

aftermath (verb)	effect (verb)
	produce
	act so as to bring into existence