Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
spondīăcus (less correctly spondă-ĭcus), a, um, adj., = σπονδειακός, consisting of spondees, spondaic: versus, Diom. p. 494 P.: tractus, Terentian. ap. Prisc. Metr. p. 1321 P.