Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
părăsītĭcus, a, um, adj. [parasitus], parasitic: perjuratiunculae, Plaut. Stich. 1, 3, 77: ars, id. Capt. 3, 1, 9: mensa, Aug. ap. Suet. Vit. Hor.