Specific word equivalent of phrasal "bring down"
Solution 1:
Diminish would be a good choice.
Lexico:
VERB
[WITH OBJECT]
1 Make or become less.
1.1 Cause to seem less impressive or valuable.
‘Hasn't technology increased labor's mobility and diminished the importance of physical proximity?’
‘My friends scoff at this, claiming that the importance of sex diminishes with age.’