slough vs throw off

slough is a noun but throw off is not a noun.

Word	Noun	Adjective	Verb	Adverb
slough	Yes	No	Yes	No
throw off	No	No	Yes	No

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

Other hypernyms of slough include cast, cast off, drop, shake off, shed, throw, throw away.

slough (noun)	throw off (noun)
any outer covering that can be shed or cast off (such as the cast-off skin of a snake)
necrotic tissue; a mortified or gangrenous part or mass
a stagnant swamp (especially as part of a bayou)
a hollow filled with mud

slough (verb)	throw off (verb)
cast off hair, skin, horn, or feathers	to remove
	get rid of