befall vs occur

befall and occur both are verbs.

Word	Noun	Adjective	Verb	Adverb
befall	No	No	Yes	No
occur	No	No	Yes	No

As verbs, occur is a hypernym of befall; that is, occur is a word with a broader meaning than befall:

Other hypernyms of befall include come about, fall out, go on, hap, happen, pass, pass off, take place.

As verbs, occur is a hypernym of befall; that is, occur is a word with a broader meaning than befall:

Other hypernyms of befall include come about, fall out, go on, hap, happen, pass, pass off, take place.

befall (verb)	occur (verb)
happen, occur, or be the case in the course of events or by chance	come to pass
become of; happen to	come to one's mind; suggest itself
	to be found to exist