sinew vs hamstring

sinew and hamstring both are nouns.

Word	Noun	Adjective	Verb	Adverb
sinew	Yes	No	No	No
hamstring	Yes	No	Yes	No

As nouns, hamstring is a hyponym of sinew; that is, hamstring is a word with a more specific, narrower meaning than sinew:

sinew: a cord or band of inelastic tissue connecting a muscle with its bony attachment
hamstring: one of the tendons at the back of the knee

Other hyponyms of sinew include hamstring tendon, Achilles tendon, tendon of Achilles.

sinew (noun)	hamstring (noun)
possessing muscular strength	one of the tendons at the back of the knee
a cord or band of inelastic tissue connecting a muscle with its bony attachment

sinew (verb)	hamstring (verb)
	cripple by cutting the hamstring
	make ineffective or powerless