disallow vs require

disallow and require both are verbs.

Word	Noun	Adjective	Verb	Adverb
disallow	No	No	Yes	No
require	No	No	Yes	No

As verbs, require is a hypernym of disallow; that is, require is a word with a broader meaning than disallow:

Other hypernyms of disallow include command.

disallow (verb)	require (verb)
command against	make someone do something
	consider obligatory; request and expect
	have need of
	require as useful, just, or proper