make pure vs ameliorate

make pure and ameliorate both are verbs.

Word	Noun	Adjective	Verb	Adverb
make pure	No	No	Yes	No
ameliorate	No	No	Yes	No

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

make pure: remove impurities from, increase the concentration of, and separate through the process of distillation
ameliorate: to make better

Other hypernyms of make pure include amend, better, improve, meliorate.

make pure (verb)	ameliorate (verb)
remove impurities from, increase the concentration of, and separate through the process of distillation	get better
	to make better