Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
carrus, i, m. (carrum, i, n., Auct. B. Hisp. 6; cf. Non. p. 195, 26, and Isid. Orig. 20, 12, 1), a kind of two-wheeled wagon for transporting burdens, Varr. and Sisenn. ap. Non. p. 195, 26 sq.; Caes. B. G. 1, 3; 1, 6; 1, 26; 3, 51; Hirt. B. G. 8, 14; Liv. 10, 28, 9; Veg. 3, 10; Cod. Th. 8, 5, 47.