Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
rŭbĭcundus, a, um, adj. [rubeo], red, ruddy: rufus quidam, ore rubicundo, Plaut. Ps. 4, 7, 121; cf. id. Rud. 2, 2, 8; Ter. Hec. 3, 4, 26: corna, Hor. Ep. 1, 16, 8: pluma, Col. 8, 2, 7: luna, Plin. 18, 35, 79, § 347: Priapus, painted red, Ov. F. 6, 319 (cf. ruber): Ceres, ruddy, for flava, Verg. G. 1, 297: caelum, Vulg. Matt. 16, 2.
Comp.: sabulo, Varr. R. R. 1, 9, 5: habitus cometae, Sen. Q. N. 7, 11.