furbish up vs ameliorate

furbish up and ameliorate both are verbs.

Word	Noun	Adjective	Verb	Adverb
furbish up	No	No	Yes	No
ameliorate	No	No	Yes	No

As verbs, ameliorate is a hypernym of furbish up; that is, ameliorate is a word with a broader meaning than furbish up:

furbish up: restore by replacing a part or putting together what is torn or broken
ameliorate: to make better

Other hypernyms of furbish up include amend, better, improve, meliorate.

furbish up (verb)	ameliorate (verb)
restore by replacing a part or putting together what is torn or broken	get better
	to make better