befall vs pass off

befall and pass off both are verbs.

Word	Noun	Adjective	Verb	Adverb
befall	No	No	Yes	No
pass off	No	No	Yes	No

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

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

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

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

befall (verb)	pass off (verb)
happen, occur, or be the case in the course of events or by chance	expel (gases or odors)
become of; happen to	come to pass
	disappear gradually
	disregard
	cause to be circulated and accepted in a false character or identity
	be accepted as something or somebody in a false character or identity