elapse vs vanish

elapse and vanish both are verbs.

Word	Noun	Adjective	Verb	Adverb
elapse	No	No	Yes	No
vanish	No	No	Yes	No

As verbs, vanish is a hyponym of elapse; that is, vanish is a word with a more specific, narrower meaning than elapse:

Other hyponyms of elapse include fell, fly.

elapse (verb)	vanish (verb)
for time to move forward	get lost, as without warning or explanation
	decrease rapidly and disappear
	cease to exist
	pass away rapidly
	become invisible or unnoticeable