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Trisagion

noun
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Tris·​agion | \ trēˈsȧyȯn \
plural Trisagia\ -​yȧ \

Definition of Trisagion

1 : a hymn to or invocation of God as the thrice holy the Trisagion of Isa 6:3
2 : a requiem service of the Eastern Church

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History and Etymology for Trisagion

Middle Greek, from neuter of Late Greek trisagios thrice holy, from Greek tris- + hagios holy

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“Trisagion.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Trisagion. Accessed 12 December 2019.

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