amend, advance, correct; see improve 1.
"meliorate." YourDictionary, n.d. Web. 12 October 2018. <http://thesaurus.yourdictionary.com/meliorate>.
meliorate. (n.d.). Retrieved October 12th, 2018, from http://thesaurus.yourdictionary.com/meliorate
To advance to a more desirable state:
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