Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sŭpĕr-īnĭcĭo, no perf., jectum, 3, v. a., to throw on or above, to cast over or upon (poet. and in post-Aug. prose): raras frondes, Verg. G. 4, 46: textum rude, Ov. M. 8, 640: terram, id. F. 5, 533: togas, id. ib. 6, 570: folia contrita et illita, Cels. 5, 26, 33: fimum, Plin. 17, 9, 6, § 53.