calming (n.)

• abatement
• alleviation
• appeasement
• assuagement
• conciliation
• deadening
• detente
• diminution
• easing
• hushing
• leniency
• lessening
• letdown
• letup
• lightening
• loosening
• mediation
• mitigation
• modulation
• mollification
• pacification
• palliation
• placation
• propitiation
• reduction
• relaxation
• remission
• slackening
• softening
• stilling
• tempering