dampen

1 ENTRIES FOUND:
dampen /ˈdæmpən/ verb
dampens; dampened; dampening
dampen
/ˈdæmpən/
verb
dampens; dampened; dampening
Britannica Dictionary definition of DAMPEN
[+ object]
1 
: to make (something) somewhat or slightly wet : to make (something) damp
2 
: to make (something) less strong or active