effect vs hap

effect and hap both are nouns.

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

effect (noun)	hap (noun)
an outward appearance	an accidental happening
(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

effect (verb)	hap (verb)
produce	come to pass
act so as to bring into existence