Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
claudĭcātĭo, ōnis, f. [claudico], a limping, Cic. N. D. 1, 30, 83; id. de Or. 2, 61, 249; Col. 6, 12, 1; Val. Max. 8, 11, ext. 3.