Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* fŏcācĭus or -tĭus, a, um, adj. [focus], of or belonging to the hearth, hearth-: panis, i. e. baked on the hearth (in the ashes), ash-cake, Isid. Orig. 20, 2, 15.