fratricide /fratˈri-sīd or frātˈ/

1. A person who kills his or her brother
2. The murder of a brother

• treasonous
• treasons
• treasure
• treasure-chest
• treasure-chests
• treasure-cities
• treasure-city
• treasured
• treasure-house
• treasure-houses
• treasure hunt
• treasure hunts
• treasurer
• treasurers
• treasurership
• treasurerships
• treasures
• treasure-trove
• treasure-troves
• treasuries
• treasuring
• treasury
• Treasury bench
• Treasury bill
• Treasury bills