Lewis & Short

Calchās, antis (gen. Calchae, Gell. ap. Charis. p. 50 P.; acc. Calcham, Pac. and Plaut. ib.; Calchanta, Verg. A. 2, 122; Val. Max. 8, 11, ext. 6; Stat. Achill. 1, 493; 2, 7; Calchantem, Cic. N D. 2, 3, 7; id. Div. 1, 40, 87; 2, 30, 63; abl. Calchă, Plaut. Men. 5, 1, 48; cf. Prisc. p. 702 P.; Ritschl prol. ad Plaut. Trin. p. 87), m., = Κάλχας, son of Thestor, the most distinguished seer among the Greeks before Troy, Verg. A. 2, 122; 2, 182; Ov. A. A. 2, 737.