trammel vs fetter

trammel and fetter both are nouns.

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

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

trammel: 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 trammel include ball and chain, hobble, cuff, handcuff, handlock, manacle, chains, irons.

trammel (noun)	fetter (noun)
a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)	a shackle for the ankles or feet
a restraint that is used to teach a horse to amble
an adjustable pothook set in a fireplace
a fishing net with three layers; the outer two are coarse mesh and the loose inner layer is fine mesh

trammel (verb)	fetter (verb)
place limits on (extent or amount or access)	restrain with fetters
catch in or as if in a trap