mayhem /māˈhem or māˈəm/

1. Maiming
2. Malicious damage (law and US)
3. Havoc, chaos (informal; non-standard)

• original equipment manufacturers
• originalities
• originality
• originally
• originals
• original sin
• originate
• originated
• originates
• originating
• originating application
• originating summons
• origination
• originations
• originative
• originator
• originators
• origins
• orillion
• orillions
• Orimulsion
• O-ring
• oriole
• orioles
• Oriolidae