1. to pass or transfer (power, responsibility, or authority) to someone at a lower level
Usage: often used with ‘to’ or ‘upon’
2. to gradually decline or deteriorate into a worse condition
Usage: often used with ‘into’

Examples

• The federal government devolves certain powers to the states.
• Authority over local schools devolves to the district boards.
• The peaceful protest devolves into violence.
• Without proper maintenance, the building devolves into disrepair.
• The discussion devolves into personal attacks.
• Responsibility for the project devolves upon the team leader.
• The situation quickly devolves into chaos.