Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dē-nĭcālis (in MSS. also written denec-), e, adj. [nex], purifying from death; feriae or dies, a funeral solemnity among the Romans for the purification of the family of the deceased: nec vero tam denicales, quae a nece appellatae sunt, quia resident mortui, quam ceterorum celestium quieti dies feriae nominarentur, nisi, etc, Cic. Leg. 2, 22, 55; Cinc. ap. Gell. 16, 4, 4; Col. 2, 22, 5; Paul. ex Fest. p. 70, 9, and Fest. p. 242, 29 Müll. (v. Wordsworth Fragm. and Specim. p. 558).