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

• cataclasmic
• cataclasms
• cataclastic
• cataclysm
• cataclysmic
• cataclysmically
• cataclysms
• catacomb
• catacombs
• catacoustics
• catacumbal
• catadioptric
• catadioptrical
• catadromous
• catafalco
• catafalcoes
• catafalque
• catafalques
• Cataian
• Catalan
• catalase
• catalases
• catalectic
• catalepsies
• catalepsy