Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
digno, āre, 1, v. a. [dignus], to deem worthy: quis caelestes dignet decorare hostiis, Pac. ap. Non. 98, 15; so with inf., id. ib. 470, 20; ap. Serv. Verg. A. 11, 169; and in Diomed. p. 395 P.; Att. ap. Non. 470, 19: hunc tanto munere digna, Calvus ap. Serv. l. l.; so with abl., Cic. Arat. 34.