Lewis & Short

rōbīgĭnōsus (rūbīg-), a, um, adj. [robigo], rusty.

  1. I. Lit.: strigilis, Plaut. Stich. 1, 3, 77: gladius (opp. splendidus), Fronto Eloq. p. 230 Mai: telum sanguine, App. de Deo Socr. p. 45, 6.
  2. * II. Trop.: rubiginosis dentibus cuncta rodit, i.e. envious, Mart. 5, 28, 7.