Lewis & Short

1. ănăs, ănătis (gen. plur. anatum, Cic. N. D. 2, 48, 124; Plin. 25, 2, 3, § 6; rarely anatium, Varr. R. R. 3, 5, 14; 3, 11, 1) [kindr. with old Germ. Anut; Lith. antis; mod. Germ. Ente; perh. also with Sanscr. ātis, a waterfowl], f., the duck: greges anatium, Varr. R. R. 3, 11: anatum ova, Cic. N. D. 2, 48, 124 al.: Anas fluviatilis, wild-duck, Ov. M. 11, 773.