undercut
/ˌʌndɚˈkʌt/
verb
undercuts;
undercut;
undercutting
undercuts;
undercut;
undercutting
Britannica Dictionary definition of UNDERCUT
[+ object]
1
:
to offer to sell things or work for a lower cost than (another person or company)
2
:
to make (something) weaker or less effective
:
undermine