Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sā̆crĭfĭcus, a, um, adj. [sacrifico], of or belonging to a sacrificing, sacrificial (poet.; not ante-Aug.): securis, Ov. M. 12, 249: dies, id. ib. 13, 590: ritus, id. ib. 15, 483: arae, Val. Fl. 8, 243: vestis, Sil. 3, 27: os, of those sacrificing, praying, Ov. F. 1, 130: Ancus, mindful of sacrifices or of religion in gen., id. ib. 6, 803; cf.: Numa, Luc. 9, 478: jugum, where human sacrifices were offered, Val. Fl. 4, 110: preces, Sen. Med. 38: rex, v. rex, I.