hamper vs fetter

hamper and fetter both are nouns.

Word	Noun	Adjective	Verb	Adverb
hamper	Yes	No	Yes	No
fetter	Yes	No	Yes	No

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

hamper: a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)
fetter: a shackle for the ankles or feet

Other hyponyms of hamper include ball and chain, hobble, cuff, handcuff, handlock, manacle, chains, irons.

hamper (noun)	fetter (noun)
a basket usually with a cover	a shackle for the ankles or feet
a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)

hamper (verb)	fetter (verb)
prevent the progress or free movement of	restrain with fetters
put at a disadvantage