ἐφόδιον, Viaticum, i.e. provision for a journey, and here for the journey through this life.  It is applied metaphorically by other Fathers (a) in this general sense, to the reading of Holy Scripture, Prayer, and Baptism, and (b) in a special sense to the Holy Eucharist when administered to the sick and dying, as a preparation for departure to the life after death.  Council of Nicæa (a.d. 325), Canon xiii.  “With respect to the dying, the old rule of the Church should continue to be observed, which forbids that any one who is on the point of death should be deprived of the last and most necessary viaticum (ἐφόδιον).”