abrogate

verb
1
to officially end a law, an agreement, etc.
لغو کردن, باطل کردن, ابطال کردن, فسخ کردن
synonym repeal
2
to fail to carry out a responsibility or duty
لغو کردن, ابطال کردن, ملغی کردن, نقض کردن
We believe the board is abrogating its responsibilities.