Renounce

verb to renounce or relinquish a throne, power, responsibility, right, claim, or duty

• The king decided to abdicate the throne in favor of his son.
• The CEO just abdicated his responsibilities and left the company in chaos.
• I can't believe she just abdicated her duties like that.
• Sometimes we have to abdicate control and let things unfold naturally.

verb to solemnly renounce or reject a belief, cause, or claim

• The defendant decided to abjure his previous statement and plead guilty instead.
• She promised to abjure junk food for a month, but ended up giving in after a week.
• I abjure that TV show, it's so boring.
• He abjured his old habits and embraced a healthier lifestyle.