stultify vs weaken

stultify and weaken both are verbs.

Word	Noun	Adjective	Verb	Adverb
stultify	No	No	Yes	No
weaken	No	No	Yes	No

As verbs, weaken is a hypernym of stultify; that is, weaken is a word with a broader meaning than stultify:

stultify (verb)	weaken (verb)
deprive of strength or efficiency; make useless or worthless	become weaker
cause to appear foolish	lessen the strength of
prove to be of unsound mind or demonstrate someone's incompetence	reduce the level or intensity or size or scope of
	lessen in force or effect
	destroy property or hinder normal operations