Evensong

In medieval England, the canonical hour of Vespers. At the Reformation, the name was carried over into the Book of Common Prayer (B.C.P.) formally to designate what subsequently came to be called Evening Prayer: “An ordre for Evensong throughout the yere” (B.C.P., 1549); “An ordre for Evening prayer throughout the yere” (B.C.P., 1552 and later). The informal use of the term Evensong has persisted nevertheless.