step down

Verb

• reduce the level or intensity or size or scope of
  • de-escalate a crisis
    

• give up or retire from a position
  • The Secretary of the Navy will leave office next month
    
  • The chairman resigned over the financial scandal
    

Related words

• Synonyms: 
  de-escalate , weaken , leave office , quit , resign
• Antonyms: 
  escalate , intensify , step up , take office