frustrate

baffle confront depress discourage dishearten hinder

annul arrest balk bar beat block cancel check circumvent conquer counter counteract cramp crimp dash defeat foil forbid forestall halt impede inhibit lick negate neutralize nullify obstruct obviate outwit overcome preclude prevent prohibit ruin stump stymie

cramp one's style dash one's hope foul up give the runaround hang up hold up render null and void upset the apple cart

aid assist encourage hearten help inspirit

abet allow approve forward give up let go lose open permit push release retreat support surrender validate yield

cooperate facilitate