rocking (?.)

• appeasing
• calming
• careening
• cradling
• dangling
• dreamy
• drowsy
• gentling
• hushing
• lulling
• lurching
• mollifying
• pacifying
• pitching
• quietening
• reeling
• restful
• rolling
• soothful
• soothing
• stilling
• swaying
• swinging
• tossing
• tranquilizing