meliorative
me·lio·ra·tive
adjective
1.
Origin
From Late Latin meliōrō (“make better, improve”) + English -ative (“tending to”, suffix forming adjectives).
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.