Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* sub -băsĭlĭcānus, i, m. [basilica], one who lounges around the basilicas, a lounger: quorum odos subbasilicanos omnes abigit, Plaut. Capt. 4, 2, 35 Brix ad loc.