from
The Collaborative International Dictionary of English v.0.48
Meliorate \Mel"io*rate\ (m[=e]l"y[-o]*r[=a]t), v. t. [imp. & p.
p. {Meliorated} (m[=e]l"y[-o]*r[=a]`t[e^]d); p. pr. & vb. n.
{Meliorating}.] [L. melioratus, p. p. of meliorare to
meliorate, fr. melior better; akin to Gr. ma^llon rather,
ma`la very. Cf. {Ameliorate}.]
To make better; to improve; to ameliorate; to soften; to make
more tolerable.
[1913 Webster]
Nature by art we nobly meliorate. --Denham.
[1913 Webster]
The pure and benign light of revelation has had a
meliorating influence on mankind. --Washington.
[1913 Webster]