weaken vs relax

weaken and relax both are verbs.

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

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

weaken (verb)	relax (verb)
become weaker	become less tense, rest, or take one's ease
lessen the strength of	cause to feel relaxed
reduce the level or intensity or size or scope of	make less taut
lessen in force or effect	become loose or looser or less tight
destroy property or hinder normal operations	make less active or fast
	become less severe or strict
	make less severe or strict
	become less tense, less formal, or less restrained, and assume a friendlier manner