Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
noctĭcŏlor, ōris, adj. [nox-color], nightcolored, black: nocticolor Memnon (as being an Ethiopian), Laev. ap. Gell. 19, 7, 6: Styx, Aus. Monos. de Diis, 11.