Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† cytĭsus, i, comm. (cytĭsum, i, n., Varr. R. R. 2, 1, 17; 2, 2, 19), = κύτισος, a shrubby kind of clover much valued by the ancients, perh. the shrubby snail-clover: Medicago arborea, Linn.; Varr. R. R. 2, 1, 17; Col. 5, 12: Plin. 13, 24, 47, § 130; Verg. E. 1, 79; 2, 64 al.