verb (used with or without object), mel·io·rat·ed, mel·io·rat·ing.
Origin of meliorate
verb (used with or without object), a·mel·io·rat·ed, a·mel·io·rat·ing.
Origin of ameliorate
Examples from the Web for meliorated
That something the manure of birds, meliorated and altered by time, had supplied, and lo!The Crater|James Fenimore Cooper
Civilization has not meliorated mankind essentially while men hold themselves to services they make menial and degrading.Tablets|Amos Bronson Alcott
In this manner soils are constantly changing upon the same spot; sometimes they are meliorated, at other times impoverished.Theory of the Earth, Volume 2 (of 4)|James Hutton
Word Origin for ameliorate
1550s, "to make better," back-formation from melioration or else from Late Latin melioratus, past participle of Latin meliorare "improve," from melior "better," used as comparative of bonus "good," but probably originally meaning "stronger," from PIE root *mel- "strong, great, numerous" (see multi-). Related: Meliorated; meliorating; melioration; meliorative.
1728, perhaps a back-formation from amelioration on pattern of French améliorer. The simpler form meliorate was used in Middle English. Related: Ameliorated; ameliorating.