Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dī-lănĭo, āvi, ātum, 1, v. a., to tear to pieces, to dilacerate (rare but class.): (Clodii cadaver) canibus dilaniandum reliquisti, Cic. Mil. 13; cf. id. poët. Tusc. 2, 10, 24; Ov. M. 6, 645; 10, 387; Tac. A. 11, 22; 36; Vulg. Luc. 2, 39 al.
Trop.: animam (c. c. dispergere), Lucr. 3, 538.
In a Gr. construction: dilaniata comas, Ov. Am. 3, 9, 52.