denegate
/dɪˈnɛɡeɪt, ˈdɛnɪɡeɪt/Definitions
1. verb
to deny or refuse (something requested or deserved)
“She threatened to denegate his request for a raise if he didn’t meet his quarterly targets.”
2. noun
the act of denying or refusing (something requested or deserved)
“His denegation of her request for a day off was met with resistance from her colleagues.”