chew up vs chasten

chew up and chasten both are verbs.

Word	Noun	Adjective	Verb	Adverb
chew up	No	No	Yes	No
chasten	No	No	Yes	No

As verbs, chasten is a hyponym of chew up; that is, chasten is a word with a more specific, narrower meaning than chew up:

Other hyponyms of chew up include castigate, chastise, correct, objurgate, brush down, tell off.

chew up (verb)	chasten (verb)
censure severely or angrily	change by restraining or moderating
	correct by punishment or discipline
	censure severely