Lewis & Short

plumbo, āvi, ātum, 1, v. a. [plumbum].

  1. I. To lead, to solder with lead (ante-class. and post-Aug.): modiolos indet et plumbet, Cato, R. R. 21: argentum, Plin. 34, 17, 48, § 161: scyphum alieno plumbo, Dig. 41, 1, 27.
  2. II. To make a thing of lead; hence, plumbātus, a, um, Part., leaden (postAug.): plumbatae sagittae, Plin. 10, 33, 50, § 97: jacula, Sol. 3, 3: canales, Front. Aquaed. 124: tabulae, Val. Max. 3, 7, n. 2.
    1. B. Subst.: plumbātae, ārum, f.
      1. 1. Leaden balls, Veg. Mil. 1, 17.
      2. 2. Scourges to which leaden balls are attached: plumbatarum ictus, Cod. Th. 9, 35, 2.