A form or formulary according to which public religious worship, especially Christian worship, is conducted. The Liturgy designates the Communion office of the Orthodox Church, and is also an archaic term in the Anglican Church for the Book of Common Prayer. Recorded from the mid 16th century, the word comes via French or late Latin from Greek leitourgia ‘public service, worship of the gods’.
Liturgical colours the colours used in ecclesiastical vestments and hangings for an altar, varying according to the season, festival, or kind of service. These have varied over the centuries, but now generally conform to the system established in 1570, with violet for Advent and Lent, white and gold for Christmas, Epiphany, Easter Sunday, and Trinity Sunday, red for Passion Sunday and Pentecost, and green for the rest of the year.