Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† ecliptĭcus, a, um, adj., = ἐκλειπτικός, belonging to an eclipse: signa, Manil. 4, 816; 846 (cf. Plin. 2, 16, 13, § 68): linea, the ecliptic, Serv. Verg. A. 10, 216.