Lewis & Short

vĭātĭcus, a, um, adj. [via], of or belonging to a road or journey, viatic.

  1. I. Adj. (very rare): cena, a parting meal, farewell repast, Plaut. Bacch. 1, 1, 61; so perh. factum, id. Trin. 4, 2, 45; v. Ritschl ad h. l.
  2. II. Subst.: vĭātĭcum, i, n., travellingmoney, provision for a journey, viaticum (freq. and class.).
    1. A. Lit., Plaut. Capt. 2, 3, 89; id. Ep. 5, 1, 9; id. Poen. prol. 71; Cic. Sen. 18, 66; Liv. 44, 22, 13; Hor. Ep. 1, 17, 54; Plin. Ep. 4, 13, 5.
      Esp., Charon’s fare, App. M. 6, p. 180, 32 al.
      1. 2. Transf. (late Lat.), a journey: extensa viatica, Ven. Fort. Misc. prol.
      2. * 3. Trop.: magnum viaticum ex se atque in se ad rempublicam evertendam habere, resources, means, Quadrig. ap. Gell. 17, 2, 13.
    2. B. Transf.
      1. 1. Money made by a soldier in the wars, savings, prize-money, Hor. Ep. 2, 2, 26; Suet. Caes. 68.
      2. 2. Money to pay the expenses of one studying abroad, Dig. 12, 1, 17.