Lewis & Short

Dīdĭus, a, um,

  1. I. the name of a Roman plebeian gens; so T. Didius, consul in the year 656 a. u. c., Cic. Planc. 25, 61; Ov. F. 6, 568 al.; Didius Julianus, emperor of Rome in the year 193 A. D., whose life is written by Spartianus.
  2. II. Adj.: Lex Didia sumptuaria, of the year 610 a. u. c., Macr. S. 2, 13, 6. Another law: Lex Caecilia Didia, of the year 656, Cic. Sest. 64, 135; id. Att. 2, 9, 1 al.