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

• syntony
• sype
• syped
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• sypher
• syphered
• syphering
• syphers
• syphilis
• syphilisation
• syphilisations
• syphilise
• syphilised
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• syphilising
• syphilitic
• syphilitics
• syphilization
• syphilizations
• syphilize
• syphilized
• syphilizes
• syphilizing
• syphiloid
• syphilologies