Other hyponyms of meliorate include
alleviate,
assuage,
palliate,
relieve,
aid,
help,
regenerate,
revitalize,
enrich,
build up,
develop,
turn around,
help,
upgrade,
condition,
emend,
iron out,
put right,
straighten out,
enhance,
bushel,
doctor,
fix,
furbish up,
mend,
repair,
restore,
touch on,
reform,
reform,
embellish,
fancify,
prettify,
build,
hone,
perfect,
down,
fine-tune,
polish,
refine,
distil,
distill,
make pure,
purify,
sublimate,
fructify,
lift,
raise,
advance,
upgrade,
educate.