Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
septem-plex, plĭcis, adj. [plico], sevenfold (poet.): clipeus (consisting of layers of ox-hides, the Homer. ἑπταβόειον σάκος, Il. 7, 220 sq.), Verg. A. 12, 925; Ov. M. 13, 2 (cf. id. ib. 12, 95): Nilus (as having seven mouths), id. ib. 5, 187 (cf. septemfluus and septemgeminus); so, Ister, Ov. Tr. 2, 189: Spiritus, Tert. Carm. adv. Marc. 4, 128: Spiritus Sancti gratia, Ambros. Jac. et Vit. Beat. 2, 9, 39; Oros. 6, 2: oculi, Vulg. Ecclus. 20, 14.