trisagion /tri-sagˈi-on/

1. An ancient hymn consisting of the words ‘O Holy God, holy and mighty, holy and immortal, have mercy on us’
2. Loosely, the Tersanctus

• Sassanian
• Sassanid
• Sassanidae
• sassarara
• sassararas
• sasse
• sassed
• Sassenach
• sasses
• sassier
• sassiest
• sassily
• sassiness
• sassinesses
• sassing
• sassolin
• sassolite
• sassolites
• sassy
• sastra
• sastras
• sastruga
• sastrugi
• sat
• SAT