Source : Webster's Revised Unabridged Dictionary (1913)

Viaticum \Vi*at"i*cum\, n. [L., from viaticus, a. See {Viatic}.]
   1. (Rom. Antiq.) An allowance for traveling expenses made to
      those who were sent into the provinces to exercise any
      office or perform any service.

   2. Provisions for a journey. --Davies (Wit's Pilgr.).

   3. (R. C. Ch.) The communion, or eucharist, when given to
      persons in danger of death.