“Liturgy” comes from two Greek words that mean, in the strictest etymological sense, “work of the people.” More broadly, various church traditions employ the term with different meanings. Relatively universal are the term’s references to (1) all public worship of the church, as opposed to private prayers and other expressions of devotion and (2) worship surrounding celebration of the Eucharist in particular. Even these uses require qualification, however, for a couple of reasons. For example, on…