Lewis & Short

† spŏdĭum, ii, n., = σπόδιον.

  1. I. Lit., the dross of metals, slag, scoria, Plin. 34, 18, 50, § 170; 34, 18, 52, § 172.
  2. II. Transf., ashes of vegetable matter, Plin. 23, 4, 38, § 76.