[me.lio.rate] vb -rat.ed ; -rat.ing [LL melioratus, pp. of meliorare, fr. L melior better; akin to L multus much, Gk mala very] (1542): ameliorate -- me.lio.ra.tion n -- me.lio.ra.tive adj -- me.lio.ra.tor n
MELIORATE
Meaning of MELIORATE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012