make something better
ameliorate - improve
The word ‘ameliorate’ is usually used in relation to improving an unpleasant situation or making it less harmful. It does not imply getting to the root of a problem or providing a long-term solution. Instead, it tends to be used in the context of a short-term fix.
He expected me to do something to ameliorate the situation but I was as confused as he was.
Our priority should be to address the poor working conditions in the factory. That is what is in most need of amelioration.
Your solution may succeed in ameliorating the problem temporarily, but it will not solve it.