liturgy
noun
[ ˈlɪtədʒi ]
• a form or formulary according to which public religious worship, especially Christian worship, is conducted.
• "the Church of England liturgy"
Similar:
ritual,
worship,
service,
ceremony,
rite,
observance,
celebration,
ordinance,
office,
sacrament,
solemnity,
ceremonial,
formulation,
form,
custom,
practice,
tradition,
rubric,
• (in ancient Greece) a public office or duty performed voluntarily by a rich Athenian.
Origin:
mid 16th century: via French or late Latin from Greek leitourgia ‘public service, worship of the gods’, from leitourgos ‘minister’, from lēitos ‘public’ + -ergos ‘working’.