Lewis & Short

Clastĭdĭum, ĭi, n.

  1. I. A fortress in Gallia Cisalpina, near the Padus, now Chiasteggio, Cic. Tusc. 4, 22, 49; Nep. Hann. 4, 1; Liv. 21, 48, 9.
  2. II. The name of a fragment of Nœvius, Varr. L. L. 7, 107; 9, 78.