require vs disallow

require and disallow both are verbs.

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

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

Other hyponyms of require include burden, charge, saddle, requisition, forbid, interdict, nix, prohibit, proscribe, veto.

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