Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-cānus, a, um, adj., quite gray, hoary (poet. and in post-Aug. prose): homo crispus, incanus, Plaut. Rud. 1, 2, 37: mentum, Verg. G. 3, 311: barba, Col. 8, 2, 9: labra Famis, Ov. M. 8, 804: caput, Suet. Dom. 20.
Poet.: saecula, hoary centuries, Cat. 95, 6.