Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
cĭnnămĕus, a, um, adj. [cinnamum], of or from cinnamon, smelling of cinnamon: nidus, Aus. Idyll. 11, 17: odor, App. M. 8, p. 205: crines, smelling of cinnamon, id. ib. 5, p. 164.