Lewis & Short

† cybĭum or -ĭon, ii, n., = κύβιον.

  1. I. A tunny-fish, Varr. L. L. 5, § 77 Müll.; Mart. 11, 27, 3; cf. Paul. ex Fest. p. 52, 15 Müll.
  2. II. Meton., a dish made of pieces of the tunny-fish salted and chopped, Plin. 9, 15, 18, § 48; 32, 11, 53, § 151; Mart. 5, 79, 3.