trammel vs pothook

trammel and pothook both are nouns.

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

As nouns, pothook is a hypernym of trammel; that is, pothook is a word with a broader meaning than trammel:

trammel (noun)	pothook (noun)
a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)	an S-shaped hook to suspend a pot over a fire
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)	pothook (verb)
place limits on (extent or amount or access)
catch in or as if in a trap