mark off vs trammel

mark off is not a noun while trammel is a noun.

Word	Noun	Adjective	Verb	Adverb
mark off	No	No	Yes	No
trammel	Yes	No	Yes	No

As verbs, trammel is a hypernym of mark off; that is, trammel is a word with a broader meaning than mark off:

Other hypernyms of mark off include bound, confine, limit, restrict, throttle.

mark off (noun)	trammel (noun)
	a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)
	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

mark off (verb)	trammel (verb)
set boundaries to and delimit	place limits on (extent or amount or access)
put a check mark on or near or next to	catch in or as if in a trap