Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
2. măgus, a, um, adj. [1. magus], magic, magical (poet.): artes, Ov. Am. 1, 8, 5: manus, id. Med. fac. 36: carmen, Sen. Herc. Oet. 467.