Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† măgīa, ae, f., = μαγεία, the science of the Magi, magic, sorcery (post-class.), App. M. 3, 16, p. 201 fin.; id. Mag. p. 290, 23; 304, 24; id. M. 3, p. 136, 19; p. 137, 36; Prud. adv. Symm. 1, 89.