Related Clues:

• Abatement
• Letting up
• Soothing
• Letting up on
• Moving carefully
• Mitigating
• Putting to rest
• Reducing, as stress
• Facilitating
• Moving freely
• Facilitator's action
• Letting off the throttle, with 'up'
• Alleviating
• Relieving tension
• Becoming less severe