meliorator, meliorater rare.
(ˈmiːlɪəreɪtə(r))
[agent-n. f. meliorate v.: see -or, -er1.]
One who or something which meliorates.
| 1855 in Ogilvie Suppl. 1870 Emerson Soc. & Solit., Work & Days Wks. (Bohn) III. 68 The greatest meliorator of the world is selfish, huckstering Trade. |