Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
terrĭcŏla, ae, comm. [terra-colo], a dweller upon earth, a terrestrial (ante- and post-class.): terricolae Lamiae, Lucil. ap. Lact. 1, 22: inter terricolas caelicolasque, App. de Deo Socr. 45, 21.