durabilis

Schaff wrote in his _Creeds of Christendom_: "The Lutheran Church, as represented in Luther's writings and in the Form of Concord, rejects transubstantiation, and also the doctrine of impanation, _i.e. _, a local inclusion of Christ's body and blood in the elements (_localis inclusio in pane_), or a permanent and extrasacramental conjunction of the two substances (_durabilis aliqua conjunctio extra usum sacramenti_);

American Lutheranism Volume 2: The United Lutheran Church (General Synod, General Council, United Synod in the South) 1894