dissipate
🇺🇸
/ˈdɪsɪpeɪt/
🇬🇧
/ˈdɪsɪpeɪt/
to slowly fade away or make something fade away until it's gone
The morning fog will dissipate when the sun rises.
to waste something like time or money by using it poorly
Don't dissipate your savings on things you don't need.