rarify vs involve

rarify and involve both are verbs.

Word	Noun	Adjective	Verb	Adverb
rarify	No	No	Yes	No
involve	No	No	Yes	No

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

Other hyponyms of rarify include develop, sophisticate.

rarify (verb)	involve (verb)
make more complex, intricate, or richer	make complex or intricate or complicated
	occupy or engage the interest of
	have as a necessary feature
	connect closely and often incriminatingly
	contain as a part
	engage as a participant
	require as useful, just, or proper