"Meliorater" is a word in ENGLISH

To make better; to improve; to meliorate.

To grow better; to meliorate; as, wine ameliorates by age.

The act of ameliorating, or the state of being ameliorated; making or becoming better; improvement; melioration.

The act of improving; advancement or growth; promotion in desirable qualities; progress toward what is better; melioration; as, the improvement …

Lat Better; the better. Melior res, the better (best) thing or chattel. Bract fol. 60

To grow better.

To make better; to improve; to ameliorate; to soften; to make more tolerable.

of Meliorate

of Meliorate

The act or operation of meliorating, or the state of being meliorated; improvement.

In Scotch law. Improvements of an estate, other than mere re-pairs; betterments. 1 Bell, Comm. 73. occasionally used in English …

One who meliorates.

The doctrine that there is a tendency throughout nature toward improvement.

The state or quality of being better; melioration.

To make less severe, intense, harsh, rigorous, painful, etc.; to soften; to meliorate; to alleviate; to diminish; to lessen; as, …