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

• congratulated
• congratulates
• congratulating
• congratulation
• congratulations
• congratulative
• congratulator
• congratulators
• congratulatory
• congree
• congreed
• congreeing
• congrees
• congreet
• congreeted
• congreeting
• congreets
• congregant
• congregants
• congregate
• congregated
• congregates
• congregating
• congregation
• congregational